Return null unless exactly 1 delta exists
Return null unless exactly 1 delta exists

AdrianVovk/substance-ide,chfritz/atom,niklabh/atom,niklabh/atom,jacekkopecky/atom,mnquintana/atom,mnquintana/atom,beni55/atom,ironbox360/atom,Huaraz2/atom,kittens/atom,ardeshirj/atom,targeter21/atom,beni55/atom,mrodalgaard/atom,scv119/atom,deoxilix/atom,g2p/atom,yalexx/atom,hagb4rd/atom,folpindo/atom,kevinrenaers/atom,vcarrera/atom,Neron-X5/atom,rookie125/atom,alfredxing/atom,constanzaurzua/atom,FIT-CSE2410-A-Bombs/atom,gisenberg/atom,tisu2tisu/atom,vhutheesing/atom,vcarrera/atom,sillvan/atom,brumm/atom,basarat/atom,charleswhchan/atom,sekcheong/atom,execjosh/atom,phord/atom,Sangaroonaom/atom,tisu2tisu/atom,palita01/atom,CraZySacX/atom,seedtigo/atom,john-kelly/atom,jacekkopecky/atom,nrodriguez13/atom,svanharmelen/atom,beni55/atom,Rodjana/atom,qiujuer/atom,darwin/atom,dannyflax/atom,NunoEdgarGub1/atom,hpham04/atom,Neron-X5/atom,Arcanemagus/atom,h0dgep0dge/atom,palita01/atom,Jdesk/atom,Andrey-Pavlov/atom,batjko/atom,abe33/atom,Ingramz/atom,t9md/atom,Hasimir/atom,nucked/atom,svanharmelen/atom,Jonekee/atom,h0dgep0dge/atom,RobinTec/atom,charleswhchan/atom,andrewleverette/atom,oggy/atom,Jandersolutions/atom,me-benni/atom,medovob/atom,batjko/atom,jjz/atom,ReddTea/atom,codex8/atom,githubteacher/atom,chengky/atom,fedorov/atom,efatsi/atom,devoncarew/atom,paulcbetts/atom,chengky/atom,fscherwi/atom,DiogoXRP/atom,fedorov/atom,sekcheong/atom,Galactix/atom,jlord/atom,chengky/atom,mostafaeweda/atom,liuderchi/atom,crazyquark/atom,deepfox/atom,dsandstrom/atom,ralphtheninja/atom,vcarrera/atom,johnrizzo1/atom,kc8wxm/atom,AlexxNica/atom,gisenberg/atom,mdumrauf/atom,panuchart/atom,rxkit/atom,russlescai/atom,RobinTec/atom,RuiDGoncalves/atom,ali/atom,constanzaurzua/atom,kjav/atom,Jonekee/atom,ReddTea/atom,execjosh/atom,atom/atom,PKRoma/atom,vinodpanicker/atom,sxgao3001/atom,stinsonga/atom,bradgearon/atom,kittens/atom,deoxilix/atom,Sangaroonaom/atom,RobinTec/atom,rjattrill/atom,sebmck/atom,splodingsocks/atom,Ingramz/atom,liuxiong332/atom,palita01/atom,Jandersoft/atom,crazyquark/atom,bj7/atom,lovesnow/atom,BogusCurry/atom,ashneo76/atom,bsmr-x-script/atom,gontadu/atom,kevinrenaers/atom,ivoadf/atom,chengky/atom,splodingsocks/atom,YunchengLiao/atom,synaptek/atom,isghe/atom,sxgao3001/atom,ardeshirj/atom,tanin47/atom,Jandersolutions/atom,rmartin/atom,matthewclendening/atom,ilovezy/atom,YunchengLiao/atom,jtrose2/atom,AdrianVovk/substance-ide,hharchani/atom,Abdillah/atom,CraZySacX/atom,scv119/atom,florianb/atom,sillvan/atom,gontadu/atom,Jandersoft/atom,jacekkopecky/atom,rsvip/aTom,qskycolor/atom,KENJU/atom,h0dgep0dge/atom,RobinTec/atom,seedtigo/atom,MjAbuz/atom,kittens/atom,svanharmelen/atom,targeter21/atom,rlugojr/atom,Hasimir/atom,kdheepak89/atom,jeremyramin/atom,ezeoleaf/atom,matthewclendening/atom,AdrianVovk/substance-ide,sxgao3001/atom,me-benni/atom,Austen-G/BlockBuilder,rookie125/atom,lisonma/atom,Ju2ender/atom,scippio/atom,johnhaley81/atom,champagnez/atom,russlescai/atom,brettle/atom,rjattrill/atom,Andrey-Pavlov/atom,ezeoleaf/atom,BogusCurry/atom,qskycolor/atom,vcarrera/atom,jlord/atom,nvoron23/atom,hagb4rd/atom,davideg/atom,atom/atom,sxgao3001/atom,tony612/atom,sebmck/atom,KENJU/atom,jlord/atom,ashneo76/atom,isghe/atom,Jandersolutions/atom,sekcheong/atom,efatsi/atom,davideg/atom,nrodriguez13/atom,Andrey-Pavlov/atom,mertkahyaoglu/atom,Arcanemagus/atom,prembasumatary/atom,Mokolea/atom,Huaraz2/atom,bcoe/atom,bsmr-x-script/atom,champagnez/atom,elkingtonmcb/atom,scv119/atom,PKRoma/atom,codex8/atom,pengshp/atom,kc8wxm/atom,SlimeQ/atom,basarat/atom,devmario/atom,pkdevbox/atom,devoncarew/atom,qiujuer/atom,yalexx/atom,ppamorim/atom,fang-yufeng/atom,hpham04/atom,matthewclendening/atom,kc8wxm/atom,abcP9110/atom,russlescai/atom,AlbertoBarrago/atom,Jandersolutions/atom,FoldingText/atom,RuiDGoncalves/atom,Andrey-Pavlov/atom,vjeux/atom,niklabh/atom,ilovezy/atom,rsvip/aTom,me6iaton/atom,kjav/atom,FIT-CSE2410-A-Bombs/atom,kdheepak89/atom,pombredanne/atom,bolinfest/atom,Abdillah/atom,stinsonga/atom,nvoron23/atom,kdheepak89/atom,n-riesco/atom,mdumrauf/atom,fredericksilva/atom,helber/atom,splodingsocks/atom,liuderchi/atom,mertkahyaoglu/atom,isghe/atom,pengshp/atom,hagb4rd/atom,codex8/atom,sillvan/atom,hharchani/atom,florianb/atom,stuartquin/atom,G-Baby/atom,Jdesk/atom,wiggzz/atom,amine7536/atom,ppamorim/atom,h0dgep0dge/atom,matthewclendening/atom,sillvan/atom,folpindo/atom,Rychard/atom,fedorov/atom,davideg/atom,amine7536/atom,dannyflax/atom,scippio/atom,prembasumatary/atom,jtrose2/atom,dkfiresky/atom,NunoEdgarGub1/atom,pkdevbox/atom,yalexx/atom,ezeoleaf/atom,batjko/atom,helber/atom,qskycolor/atom,001szymon/atom,woss/atom,bj7/atom,dkfiresky/atom,tony612/atom,001szymon/atom,Andrey-Pavlov/atom,crazyquark/atom,omarhuanca/atom,toqz/atom,Jdesk/atom,seedtigo/atom,tjkr/atom,sillvan/atom,liuxiong332/atom,Jdesk/atom,fredericksilva/atom,dijs/atom,transcranial/atom,john-kelly/atom,jordanbtucker/atom,bencolon/atom,Klozz/atom,AlisaKiatkongkumthon/atom,Sangaroonaom/atom,daxlab/atom,hellendag/atom,kittens/atom,gontadu/atom,lisonma/atom,amine7536/atom,jlord/atom,0x73/atom,Abdillah/atom,FIT-CSE2410-A-Bombs/atom,sotayamashita/atom,hakatashi/atom,xream/atom,NunoEdgarGub1/atom,pkdevbox/atom,Arcanemagus/atom,darwin/atom,darwin/atom,pengshp/atom,liuxiong332/atom,gabrielPeart/atom,bcoe/atom,Hasimir/atom,gisenberg/atom,DiogoXRP/atom,kdheepak89/atom,splodingsocks/atom,fang-yufeng/atom,rjattrill/atom,amine7536/atom,vinodpanicker/atom,dsandstrom/atom,Jandersoft/atom,tjkr/atom,paulcbetts/atom,n-riesco/atom,bsmr-x-script/atom,decaffeinate-examples/atom,bryonwinger/atom,kevinrenaers/atom,nvoron23/atom,BogusCurry/atom,Jandersoft/atom,nrodriguez13/atom,john-kelly/atom,pombredanne/atom,isghe/atom,bencolon/atom,abcP9110/atom,brettle/atom,medovob/atom,hellendag/atom,YunchengLiao/atom,nvoron23/atom,einarmagnus/atom,elkingtonmcb/atom,lpommers/atom,sebmck/atom,prembasumatary/atom,vjeux/atom,boomwaiza/atom,Ju2ender/atom,Austen-G/BlockBuilder,burodepeper/atom,bryonwinger/atom,qskycolor/atom,bcoe/atom,vhutheesing/atom,Ju2ender/atom,hharchani/atom,dkfiresky/atom,fang-yufeng/atom,KENJU/atom,rmartin/atom,mertkahyaoglu/atom,jtrose2/atom,harshdattani/atom,vjeux/atom,jordanbtucker/atom,wiggzz/atom,Austen-G/BlockBuilder,tmunro/atom,mrodalgaard/atom,Austen-G/BlockBuilder,acontreras89/atom,ppamorim/atom,einarmagnus/atom,jeremyramin/atom,Jdesk/atom,yamhon/atom,mostafaeweda/atom,MjAbuz/atom,acontreras89/atom,nucked/atom,scv119/atom,001szymon/atom,acontreras89/atom,SlimeQ/atom,sebmck/atom,prembasumatary/atom,avdg/atom,jtrose2/atom,yangchenghu/atom,gzzhanghao/atom,decaffeinate-examples/atom,jjz/atom,ivoadf/atom,YunchengLiao/atom,ObviouslyGreen/atom,hpham04/atom,lisonma/atom,ezeoleaf/atom,t9md/atom,rsvip/aTom,targeter21/atom,KENJU/atom,erikhakansson/atom,kjav/atom,yomybaby/atom,brumm/atom,githubteacher/atom,RobinTec/atom,qiujuer/atom,omarhuanca/atom,RuiDGoncalves/atom,bolinfest/atom,yomybaby/atom,woss/atom,lovesnow/atom,originye/atom,synaptek/atom,vcarrera/atom,yalexx/atom,jacekkopecky/atom,burodepeper/atom,yangchenghu/atom,harshdattani/atom,rlugojr/atom,yalexx/atom,harshdattani/atom,tjkr/atom,synaptek/atom,deepfox/atom,kandros/atom,pombredanne/atom,russlescai/atom,Mokolea/atom,fang-yufeng/atom,amine7536/atom,gzzhanghao/atom,t9md/atom,qiujuer/atom,Shekharrajak/atom,basarat/atom,mnquintana/atom,yomybaby/atom,gzzhanghao/atom,Galactix/atom,basarat/atom,toqz/atom,oggy/atom,dannyflax/atom,bcoe/atom,dijs/atom,n-riesco/atom,johnrizzo1/atom,0x73/atom,paulcbetts/atom,jjz/atom,ReddTea/atom,Abdillah/atom,alexandergmann/atom,Dennis1978/atom,jacekkopecky/atom,kc8wxm/atom,lovesnow/atom,tmunro/atom,alfredxing/atom,Huaraz2/atom,dkfiresky/atom,codex8/atom,ykeisuke/atom,me6iaton/atom,kdheepak89/atom,rmartin/atom,yamhon/atom,batjko/atom,vinodpanicker/atom,sotayamashita/atom,liuderchi/atom,elkingtonmcb/atom,kaicataldo/atom,tony612/atom,kc8wxm/atom,jjz/atom,rsvip/aTom,originye/atom,brettle/atom,acontreras89/atom,fang-yufeng/atom,florianb/atom,cyzn/atom,ardeshirj/atom,woss/atom,ilovezy/atom,ali/atom,abcP9110/atom,xream/atom,woss/atom,pombredanne/atom,Locke23rus/atom,deepfox/atom,hakatashi/atom,deepfox/atom,AlexxNica/atom,tony612/atom,FoldingText/atom,kandros/atom,jlord/atom,pombredanne/atom,vinodpanicker/atom,Jonekee/atom,efatsi/atom,tanin47/atom,kittens/atom,devoncarew/atom,Locke23rus/atom,transcranial/atom,bryonwinger/atom,hakatashi/atom,gabrielPeart/atom,panuchart/atom,ilovezy/atom,jeremyramin/atom,dijs/atom,erikhakansson/atom,ali/atom,rxkit/atom,ObviouslyGreen/atom,omarhuanca/atom,johnhaley81/atom,fredericksilva/atom,Hasimir/atom,alfredxing/atom,lpommers/atom,ilovezy/atom,Neron-X5/atom,Hasimir/atom,vinodpanicker/atom,Shekharrajak/atom,kjav/atom,champagnez/atom,charleswhchan/atom,lpommers/atom,anuwat121/atom,nvoron23/atom,Dennis1978/atom,kandros/atom,SlimeQ/atom,dannyflax/atom,isghe/atom,liuxiong332/atom,bj7/atom,qskycolor/atom,andrewleverette/atom,Jandersolutions/atom,dannyflax/atom,G-Baby/atom,yomybaby/atom,Ju2ender/atom,rsvip/aTom,omarhuanca/atom,g2p/atom,lisonma/atom,MjAbuz/atom,sekcheong/atom,AlbertoBarrago/atom,mnquintana/atom,GHackAnonymous/atom,hpham04/atom,mertkahyaoglu/atom,stuartquin/atom,dsandstrom/atom,stinsonga/atom,fredericksilva/atom,CraZySacX/atom,basarat/atom,jacekkopecky/atom,einarmagnus/atom,ykeisuke/atom,crazyquark/atom,yamhon/atom,G-Baby/atom,targeter21/atom,dkfiresky/atom,KENJU/atom,bencolon/atom,andrewleverette/atom,Dennis1978/atom,acontreras89/atom,johnrizzo1/atom,ali/atom,mostafaeweda/atom,omarhuanca/atom,Abdillah/atom,fedorov/atom,Rodjana/atom,sxgao3001/atom,matthewclendening/atom,SlimeQ/atom,daxlab/atom,ivoadf/atom,mrodalgaard/atom,deepfox/atom,ironbox360/atom,liuderchi/atom,mostafaeweda/atom,Locke23rus/atom,gisenberg/atom,prembasumatary/atom,ReddTea/atom,synaptek/atom,hagb4rd/atom,dannyflax/atom,oggy/atom,execjosh/atom,Galactix/atom,vjeux/atom,YunchengLiao/atom,bryonwinger/atom,me6iaton/atom,Galactix/atom,oggy/atom,rmartin/atom,abcP9110/atom,tmunro/atom,constanzaurzua/atom,kjav/atom,daxlab/atom,Neron-X5/atom,sebmck/atom,Rychard/atom,codex8/atom,ykeisuke/atom,Austen-G/BlockBuilder,anuwat121/atom,wiggzz/atom,stinsonga/atom,ali/atom,jordanbtucker/atom,lovesnow/atom,Ju2ender/atom,githubteacher/atom,Mokolea/atom,DiogoXRP/atom,MjAbuz/atom,hellendag/atom,liuxiong332/atom,bradgearon/atom,bradgearon/atom,brumm/atom,davideg/atom,oggy/atom,jtrose2/atom,Ingramz/atom,helber/atom,abcP9110/atom,ReddTea/atom,florianb/atom,AlisaKiatkongkumthon/atom,devmario/atom,abe33/atom,GHackAnonymous/atom,burodepeper/atom,mostafaeweda/atom,NunoEdgarGub1/atom,targeter21/atom,gisenberg/atom,Shekharrajak/atom,fedorov/atom,Galactix/atom,toqz/atom,toqz/atom,tony612/atom,scippio/atom,yangchenghu/atom,Jandersoft/atom,ironbox360/atom,GHackAnonymous/atom,gabrielPeart/atom,johnhaley81/atom,jjz/atom,chfritz/atom,cyzn/atom,charleswhchan/atom,paulcbetts/atom,devoncarew/atom,deoxilix/atom,davideg/atom,devmario/atom,einarmagnus/atom,devmario/atom,decaffeinate-examples/atom,tisu2tisu/atom,rjattrill/atom,phord/atom,xream/atom,sekcheong/atom,phord/atom,g2p/atom,folpindo/atom,rmartin/atom,sotayamashita/atom,originye/atom,mdumrauf/atom,stuartquin/atom,lisonma/atom,rlugojr/atom,AlisaKiatkongkumthon/atom,FoldingText/atom,AlexxNica/atom,me6iaton/atom,hharchani/atom,russlescai/atom,Rychard/atom,MjAbuz/atom,florianb/atom,cyzn/atom,fredericksilva/atom,Shekharrajak/atom,n-riesco/atom,rxkit/atom,ppamorim/atom,PKRoma/atom,n-riesco/atom,bolinfest/atom,devoncarew/atom,mnquintana/atom,ObviouslyGreen/atom,Rodjana/atom,hpham04/atom,Klozz/atom,GHackAnonymous/atom,bcoe/atom,SlimeQ/atom,crazyquark/atom,lovesnow/atom,panuchart/atom,hagb4rd/atom,fscherwi/atom,dsandstrom/atom,Klozz/atom,rookie125/atom,Austen-G/BlockBuilder,0x73/atom,0x73/atom,boomwaiza/atom,decaffeinate-examples/atom,charleswhchan/atom,yomybaby/atom,avdg/atom,toqz/atom,FoldingText/atom,woss/atom,chengky/atom,ralphtheninja/atom,dsandstrom/atom,hakatashi/atom,constanzaurzua/atom,me-benni/atom,batjko/atom,qiujuer/atom,chfritz/atom,john-kelly/atom,AlbertoBarrago/atom,ppamorim/atom,NunoEdgarGub1/atom,GHackAnonymous/atom,nucked/atom,ralphtheninja/atom,erikhakansson/atom,anuwat121/atom,devmario/atom,kaicataldo/atom,synaptek/atom,transcranial/atom,mertkahyaoglu/atom,atom/atom,fscherwi/atom,abe33/atom,Neron-X5/atom,alexandergmann/atom,vjeux/atom,avdg/atom,tanin47/atom,john-kelly/atom,kaicataldo/atom,alexandergmann/atom,basarat/atom,hharchani/atom,ashneo76/atom,FoldingText/atom,boomwaiza/atom,vhutheesing/atom,FoldingText/atom,einarmagnus/atom,Shekharrajak/atom,medovob/atom,constanzaurzua/atom,me6iaton/atom