Check for empty keywords moved to implementation of get_products_conditions_for
Check for empty keywords moved to implementation of get_products_conditions_for

Fixes #1846

jasonfb/spree,yushine/spree,shekibobo/spree,jsurdilla/solidus,yomishra/pce,jimblesm/spree,bricesanchez/spree,lsirivong/solidus,njerrywerry/spree,lsirivong/spree,freerunningtech/spree,xuewenfei/solidus,trigrass2/spree,freerunningtech/spree,archSeer/spree,carlesjove/spree,assembledbrands/spree,devilcoders/solidus,sliaquat/spree,agient/agientstorefront,adaddeo/spree,builtbybuffalo/spree,berkes/spree,shioyama/spree,mindvolt/spree,piousbox/spree,locomotivapro/spree,pervino/spree,adaddeo/spree,PhoenixTeam/spree_phoenix,joanblake/spree,calvinl/spree,joanblake/spree,grzlus/spree,project-eutopia/spree,vinsol/spree,lzcabrera/spree-1-3-stable,robodisco/spree,kewaunited/spree,keatonrow/spree,Senjai/solidus,xuewenfei/solidus,watg/spree,nooysters/spree,rbngzlv/spree,pjmj777/spree,alejandromangione/spree,Machpowersystems/spree_mach,DarkoP/spree,jparr/spree,surfdome/spree,NerdsvilleCEO/spree,cutefrank/spree,Arpsara/solidus,DynamoMTL/spree,keatonrow/spree,agient/agientstorefront,dotandbo/spree,DynamoMTL/spree,vinsol/spree,vcavallo/spree,alejandromangione/spree,Kagetsuki/spree,Boomkat/spree,bricesanchez/spree,mindvolt/spree,pjmj777/spree,sunny2601/spree,rajeevriitm/spree,softr8/spree,moneyspyder/spree,edgward/spree,omarsar/spree,keatonrow/spree,ayb/spree,quentinuys/spree,dandanwei/spree,project-eutopia/spree,DynamoMTL/spree,zaeznet/spree,hoanghiep90/spree,assembledbrands/spree,jspizziri/spree,brchristian/spree,thogg4/spree,RatioClothing/spree,rbngzlv/spree,azclick/spree,sliaquat/spree,pervino/spree,Kagetsuki/spree,kitwalker12/spree,vmatekole/spree,yomishra/pce,cutefrank/spree,Ropeney/spree,rakibulislam/spree,lsirivong/spree,Mayvenn/spree,welitonfreitas/spree,TimurTarasenko/spree,radarseesradar/spree,adaddeo/spree,alepore/spree,patdec/spree,bonobos/solidus,vinayvinsol/spree,lsirivong/solidus,yushine/spree,HealthWave/spree,kewaunited/spree,robodisco/spree,tesserakt/clean_spree,Arpsara/solidus,net2b/spree,shekibobo/spree,jparr/spree,ujai/spree,SadTreeFriends/spree,Arpsara/solidus,watg/spree,jasonfb/spree,karlitxo/spree,caiqinghua/spree,maybii/spree,siddharth28/spree,madetech/spree,sideci-sample/sideci-sample-spree,jaspreet21anand/spree,LBRapid/spree,judaro13/spree-fork,zamiang/spree,miyazawatomoka/spree,brchristian/spree,fahidnasir/spree,Mayvenn/spree,lsirivong/spree,bjornlinder/Spree,useiichi/spree,pervino/solidus,codesavvy/sandbox,scottcrawford03/solidus,degica/spree,woboinc/spree,tailic/spree,Senjai/solidus,cutefrank/spree,LBRapid/spree,FadliKun/spree,APohio/spree,rajeevriitm/spree,StemboltHQ/spree,zamiang/spree,jspizziri/spree,locomotivapro/spree,StemboltHQ/spree,CiscoCloud/spree,groundctrl/spree,Hates/spree,tesserakt/clean_spree,knuepwebdev/FloatTubeRodHolders,SadTreeFriends/spree,volpejoaquin/spree,dafontaine/spree,jsurdilla/solidus,ramkumar-kr/spree,yiqing95/spree,gregoryrikson/spree-sample,omarsar/spree,jordan-brough/spree,RatioClothing/spree,JuandGirald/spree,firman/spree,dandanwei/spree,ahmetabdi/spree,maybii/spree,HealthWave/spree,progsri/spree,edgward/spree,volpejoaquin/spree,beni55/spree,jhawthorn/spree,tailic/spree,NerdsvilleCEO/spree,Machpowersystems/spree_mach,pulkit21/spree,tomash/spree,yiqing95/spree,forkata/solidus,orenf/spree,miyazawatomoka/spree,useiichi/spree,gregoryrikson/spree-sample,camelmasa/spree,madetech/spree,Antdesk/karpal-spree,codesavvy/sandbox,vulk/spree,gautamsawhney/spree,patdec/spree,vcavallo/spree,odk211/spree,jsurdilla/solidus,softr8/spree,dotandbo/spree,ahmetabdi/spree,bjornlinder/Spree,azranel/spree,zamiang/spree,caiqinghua/spree,net2b/spree,grzlus/spree,joanblake/spree,JuandGirald/spree,Mayvenn/spree,codesavvy/sandbox,hifly/spree,PhoenixTeam/spree_phoenix,caiqinghua/spree,moneyspyder/spree,reidblomquist/spree,TimurTarasenko/spree,maybii/spree,vinsol/spree,camelmasa/spree,gautamsawhney/spree,jhawthorn/spree,tomash/spree,grzlus/spree,mindvolt/spree,devilcoders/solidus,Hawaiideveloper/shoppingcart,AgilTec/spree,groundctrl/spree,trigrass2/spree,siddharth28/spree,Hawaiideveloper/shoppingcart,Boomkat/spree,biagidp/spree,FadliKun/spree,priyank-gupta/spree,omarsar/spree,zaeznet/spree,grzlus/spree,azranel/spree,builtbybuffalo/spree,carlesjove/spree,jeffboulet/spree,njerrywerry/spree,jasonfb/spree,ahmetabdi/spree,jordan-brough/spree,abhishekjain16/spree,JDutil/spree,siddharth28/spree,kewaunited/spree,surfdome/spree,delphsoft/spree-store-ballchair,delphsoft/spree-store-ballchair,wolfieorama/spree,piousbox/spree,Hawaiideveloper/shoppingcart,progsri/spree,firman/spree,Senjai/solidus,derekluo/spree,keatonrow/spree,mleglise/spree,grzlus/solidus,alvinjean/spree,Ropeney/spree,TrialGuides/spree,project-eutopia/spree,dafontaine/spree,sunny2601/spree,judaro13/spree-fork,berkes/spree,yiqing95/spree,thogg4/spree,Machpowersystems/spree_mach,hoanghiep90/spree,KMikhaylovCTG/spree,groundctrl/spree,richardnuno/solidus,jordan-brough/spree,mindvolt/spree,Ropeney/spree,njerrywerry/spree,richardnuno/solidus,jeffboulet/spree,ckk-scratch/solidus,zaeznet/spree,firman/spree,TrialGuides/spree,dafontaine/spree,LBRapid/spree,HealthWave/spree,pulkit21/spree,gautamsawhney/spree,degica/spree,carlesjove/spree,judaro13/spree-fork,jasonfb/spree,hoanghiep90/spree,bjornlinder/Spree,reidblomquist/spree,Senjai/spree,biagidp/spree,surfdome/spree,delphsoft/spree-store-ballchair,athal7/solidus,orenf/spree,sfcgeorge/spree,quentinuys/spree,calvinl/spree,CiscoCloud/spree,softr8/spree,rakibulislam/spree,Senjai/spree,reinaris/spree,brchristian/spree,rakibulislam/spree,siddharth28/spree,odk211/spree,RatioClothing/spree,vinsol/spree,dafontaine/spree,ramkumar-kr/spree,Nevensoft/spree,JuandGirald/spree,radarseesradar/spree,imella/spree,freerunningtech/spree,bonobos/solidus,kewaunited/spree,jimblesm/spree,jimblesm/spree,forkata/solidus,APohio/spree,forkata/solidus,miyazawatomoka/spree,volpejoaquin/spree,Senjai/solidus,pervino/spree,jimblesm/spree,raow/spree,richardnuno/solidus,robodisco/spree,Kagetsuki/spree,Engeltj/spree,hifly/spree,ckk-scratch/solidus,degica/spree,groundctrl/spree,sideci-sample/sideci-sample-spree,quentinuys/spree,azclick/spree,nooysters/spree,odk211/spree,jordan-brough/solidus,jordan-brough/solidus,Migweld/spree,dotandbo/spree,fahidnasir/spree,vmatekole/spree,builtbybuffalo/spree,agient/agientstorefront,shaywood2/spree,azranel/spree,watg/spree,urimikhli/spree,alejandromangione/spree,devilcoders/solidus,welitonfreitas/spree,DarkoP/spree,vmatekole/spree,edgward/spree,reinaris/spree,alvinjean/spree,shaywood2/spree,nooysters/spree,radarseesradar/spree,trigrass2/spree,hoanghiep90/spree,delphsoft/spree-store-ballchair,Lostmyname/spree,pulkit21/spree,reinaris/spree,dandanwei/spree,pulkit21/spree,volpejoaquin/spree,odk211/spree,Lostmyname/spree,lzcabrera/spree-1-3-stable,gregoryrikson/spree-sample,orenf/spree,alepore/spree,tancnle/spree,abhishekjain16/spree,ayb/spree,camelmasa/spree,reidblomquist/spree,karlitxo/spree,CJMrozek/spree,ahmetabdi/spree,vulk/spree,edgward/spree,jspizziri/spree,thogg4/spree,derekluo/spree,locomotivapro/spree,Boomkat/spree,FadliKun/spree,agient/agientstorefront,vinayvinsol/spree,assembledbrands/spree,archSeer/spree,imella/spree,radarseesradar/spree,Arpsara/solidus,bonobos/solidus,ayb/spree,Senjai/spree,Lostmyname/spree,CiscoCloud/spree,Lostmyname/spree,DarkoP/spree,gregoryrikson/spree-sample,jeffboulet/spree,pervino/spree,bricesanchez/spree,robodisco/spree,sfcgeorge/spree,rajeevriitm/spree,omarsar/spree,patdec/spree,ujai/spree,grzlus/solidus,priyank-gupta/spree,mleglise/spree,richardnuno/solidus,reinaris/spree,scottcrawford03/solidus,firman/spree,athal7/solidus,surfdome/spree,Engeltj/spree,lzcabrera/spree-1-3-stable,KMikhaylovCTG/spree,hifly/spree,scottcrawford03/solidus,ckk-scratch/solidus,progsri/spree,mleglise/spree,useiichi/spree,lsirivong/solidus,Hates/spree,ramkumar-kr/spree,TimurTarasenko/spree,lsirivong/spree,AgilTec/spree,Nevensoft/spree,scottcrawford03/solidus,jaspreet21anand/spree,useiichi/spree,athal7/solidus,yushine/spree,imella/spree,builtbybuffalo/spree,azclick/spree,jordan-brough/solidus,wolfieorama/spree,raow/spree,shioyama/spree,lyzxsc/spree,sfcgeorge/spree,bonobos/solidus,moneyspyder/spree,Hates/spree,xuewenfei/solidus,nooysters/spree,Hates/spree,tancnle/spree,tailic/spree,derekluo/spree,reidblomquist/spree,moneyspyder/spree,jeffboulet/spree,jparr/spree,yiqing95/spree,jhawthorn/spree,fahidnasir/spree,quentinuys/spree,ckk-scratch/solidus,madetech/spree,calvinl/spree,rakibulislam/spree,berkes/spree,zaeznet/spree,JDutil/spree,Mayvenn/spree,alejandromangione/spree,njerrywerry/spree,beni55/spree,vcavallo/spree,codesavvy/sandbox,AgilTec/spree,CiscoCloud/spree,cutefrank/spree,knuepwebdev/FloatTubeRodHolders,zamiang/spree,sfcgeorge/spree,KMikhaylovCTG/spree,grzlus/solidus,sliaquat/spree,PhoenixTeam/spree_phoenix,raow/spree,archSeer/spree,patdec/spree,sideci-sample/sideci-sample-spree,vinayvinsol/spree,Antdesk/karpal-spree,brchristian/spree,sunny2601/spree,orenf/spree,CJMrozek/spree,maybii/spree,carlesjove/spree,rbngzlv/spree,grzlus/solidus,miyazawatomoka/spree,madetech/spree,woboinc/spree,PhoenixTeam/spree_phoenix,alepore/spree,Hawaiideveloper/shoppingcart,lsirivong/solidus,lyzxsc/spree,FadliKun/spree,biagidp/spree,Migweld/spree,JuandGirald/spree,urimikhli/spree,jaspreet21anand/spree,abhishekjain16/spree,calvinl/spree,ayb/spree,camelmasa/spree,CJMrozek/spree,TrialGuides/spree,trigrass2/spree,beni55/spree,StemboltHQ/spree,Nevensoft/spree,rbngzlv/spree,welitonfreitas/spree,Engeltj/spree,SadTreeFriends/spree,karlitxo/spree,sliaquat/spree,shaywood2/spree,joanblake/spree,progsri/spree,devilcoders/solidus,tesserakt/clean_spree,caiqinghua/spree,ujai/spree,woboinc/spree,Antdesk/karpal-spree,knuepwebdev/FloatTubeRodHolders,vcavallo/spree,urimikhli/spree,softr8/spree,jaspreet21anand/spree,NerdsvilleCEO/spree,ramkumar-kr/spree,adaddeo/spree,project-eutopia/spree,APohio/spree,piousbox/spree,vulk/spree,kitwalker12/spree,yushine/spree,TrialGuides/spree,net2b/spree,alvinjean/spree,lyzxsc/spree,vulk/spree,Boomkat/spree,yomishra/pce,abhishekjain16/spree,fahidnasir/spree,vmatekole/spree,tomash/spree,azranel/spree,DynamoMTL/spree,TimurTarasenko/spree,JDutil/spree,beni55/spree,jparr/spree,sunny2601/spree,azclick/spree,archSeer/spree,pjmj777/spree,APohio/spree,JDutil/spree,raow/spree,tomash/spree,dandanwei/spree,piousbox/spree,locomotivapro/spree,vinayvinsol/spree,Engeltj/spree,hifly/spree,priyank-gupta/spree,xuewenfei/solidus,athal7/solidus,gautamsawhney/spree,wolfieorama/spree,lyzxsc/spree,dotandbo/spree,alvinjean/spree,berkes/spree,shekibobo/spree,tancnle/spree,Nevensoft/spree,tancnle/spree,forkata/solidus,jspizziri/spree,net2b/spree,jsurdilla/solidus,DarkoP/spree,pervino/solidus,priyank-gupta/spree,shioyama/spree,shaywood2/spree,NerdsvilleCEO/spree,shekibobo/spree,KMikhaylovCTG/spree,CJMrozek/spree,karlitxo/spree,kitwalker12/spree,rajeevriitm/spree,SadTreeFriends/spree,Kagetsuki/spree,tesserakt/clean_spree,Migweld/spree,jordan-brough/solidus,pervino/solidus,Ropeney/spree,wolfieorama/spree,mleglise/spree,pervino/solidus,derekluo/spree,AgilTec/spree,welitonfreitas/spree,thogg4/spree,Migweld/spree