Returning empty enumerable if rules are null
Returning empty enumerable if rules are null

danbarua/Nancy,horsdal/Nancy,EliotJones/NancyTest,davidallyoung/Nancy,jeff-pang/Nancy,grumpydev/Nancy,EIrwin/Nancy,AIexandr/Nancy,sloncho/Nancy,tsdl2013/Nancy,AIexandr/Nancy,phillip-haydon/Nancy,jmptrader/Nancy,horsdal/Nancy,AcklenAvenue/Nancy,adamhathcock/Nancy,duszekmestre/Nancy,murador/Nancy,damianh/Nancy,sadiqhirani/Nancy,wtilton/Nancy,jonathanfoster/Nancy,davidallyoung/Nancy,NancyFx/Nancy,jeff-pang/Nancy,ayoung/Nancy,VQComms/Nancy,albertjan/Nancy,lijunle/Nancy,VQComms/Nancy,adamhathcock/Nancy,davidallyoung/Nancy,xt0rted/Nancy,ayoung/Nancy,anton-gogolev/Nancy,anton-gogolev/Nancy,EIrwin/Nancy,AcklenAvenue/Nancy,kekekeks/Nancy,Novakov/Nancy,felipeleusin/Nancy,jchannon/Nancy,danbarua/Nancy,SaveTrees/Nancy,blairconrad/Nancy,EliotJones/NancyTest,felipeleusin/Nancy,cgourlay/Nancy,tareq-s/Nancy,tareq-s/Nancy,AlexPuiu/Nancy,duszekmestre/Nancy,cgourlay/Nancy,JoeStead/Nancy,sroylance/Nancy,tparnell8/Nancy,nicklv/Nancy,danbarua/Nancy,Novakov/Nancy,VQComms/Nancy,daniellor/Nancy,murador/Nancy,lijunle/Nancy,vladlopes/Nancy,felipeleusin/Nancy,EliotJones/NancyTest,xt0rted/Nancy,malikdiarra/Nancy,tareq-s/Nancy,VQComms/Nancy,AlexPuiu/Nancy,joebuschmann/Nancy,sroylance/Nancy,SaveTrees/Nancy,dbabox/Nancy,albertjan/Nancy,vladlopes/Nancy,charleypeng/Nancy,kekekeks/Nancy,jchannon/Nancy,anton-gogolev/Nancy,phillip-haydon/Nancy,jeff-pang/Nancy,tsdl2013/Nancy,jongleur1983/Nancy,guodf/Nancy,nicklv/Nancy,malikdiarra/Nancy,jonathanfoster/Nancy,dbabox/Nancy,jongleur1983/Nancy,sroylance/Nancy,asbjornu/Nancy,murador/Nancy,charleypeng/Nancy,MetSystem/Nancy,adamhathcock/Nancy,wtilton/Nancy,thecodejunkie/Nancy,damianh/Nancy,Crisfole/Nancy,thecodejunkie/Nancy,murador/Nancy,rudygt/Nancy,dbolkensteyn/Nancy,joebuschmann/Nancy,ccellar/Nancy,SaveTrees/Nancy,daniellor/Nancy,grumpydev/Nancy,NancyFx/Nancy,fly19890211/Nancy,tparnell8/Nancy,fly19890211/Nancy,jchannon/Nancy,guodf/Nancy,MetSystem/Nancy,dbolkensteyn/Nancy,guodf/Nancy,AcklenAvenue/Nancy,dbabox/Nancy,EIrwin/Nancy,rudygt/Nancy,tsdl2013/Nancy,Worthaboutapig/Nancy,tareq-s/Nancy,damianh/Nancy,sloncho/Nancy,MetSystem/Nancy,JoeStead/Nancy,rudygt/Nancy,hitesh97/Nancy,duszekmestre/Nancy,EliotJones/NancyTest,MetSystem/Nancy,AIexandr/Nancy,xt0rted/Nancy,tparnell8/Nancy,asbjornu/Nancy,JoeStead/Nancy,ccellar/Nancy,charleypeng/Nancy,cgourlay/Nancy,JoeStead/Nancy,sroylance/Nancy,dbabox/Nancy,AcklenAvenue/Nancy,blairconrad/Nancy,kekekeks/Nancy,wtilton/Nancy,khellang/Nancy,joebuschmann/Nancy,AlexPuiu/Nancy,Novakov/Nancy,tsdl2013/Nancy,NancyFx/Nancy,hitesh97/Nancy,malikdiarra/Nancy,ayoung/Nancy,AIexandr/Nancy,VQComms/Nancy,danbarua/Nancy,charleypeng/Nancy,sadiqhirani/Nancy,ccellar/Nancy,davidallyoung/Nancy,daniellor/Nancy,lijunle/Nancy,jongleur1983/Nancy,horsdal/Nancy,fly19890211/Nancy,albertjan/Nancy,Novakov/Nancy,vladlopes/Nancy,anton-gogolev/Nancy,sadiqhirani/Nancy,phillip-haydon/Nancy,SaveTrees/Nancy,albertjan/Nancy,khellang/Nancy,EIrwin/Nancy,grumpydev/Nancy,Worthaboutapig/Nancy,hitesh97/Nancy,sloncho/Nancy,jeff-pang/Nancy,dbolkensteyn/Nancy,jmptrader/Nancy,jonathanfoster/Nancy,jmptrader/Nancy,Worthaboutapig/Nancy,blairconrad/Nancy,Crisfole/Nancy,Worthaboutapig/Nancy,sadiqhirani/Nancy,asbjornu/Nancy,lijunle/Nancy,jonathanfoster/Nancy,malikdiarra/Nancy,NancyFx/Nancy,ccellar/Nancy,asbjornu/Nancy,AIexandr/Nancy,jongleur1983/Nancy,felipeleusin/Nancy,jmptrader/Nancy,thecodejunkie/Nancy,horsdal/Nancy,Crisfole/Nancy,joebuschmann/Nancy,vladlopes/Nancy,nicklv/Nancy,grumpydev/Nancy,khellang/Nancy,xt0rted/Nancy,dbolkensteyn/Nancy,daniellor/Nancy,ayoung/Nancy,thecodejunkie/Nancy,rudygt/Nancy,charleypeng/Nancy,fly19890211/Nancy,asbjornu/Nancy,adamhathcock/Nancy,phillip-haydon/Nancy,khellang/Nancy,hitesh97/Nancy,duszekmestre/Nancy,tparnell8/Nancy,AlexPuiu/Nancy,wtilton/Nancy,guodf/Nancy,jchannon/Nancy,nicklv/Nancy,sloncho/Nancy,blairconrad/Nancy,davidallyoung/Nancy,cgourlay/Nancy,jchannon/Nancy