Don't fail when there was no previous assignee
Don't fail when there was no previous assignee

jrjang/gitlabhq,koreamic/gitlabhq,martijnvermaat/gitlabhq,allysonbarros/gitlabhq,openwide-java/gitlabhq,jirutka/gitlabhq,openwide-java/gitlabhq,larryli/gitlabhq,SVArago/gitlabhq,mmkassem/gitlabhq,cui-liqiang/gitlab-ce,dwrensha/gitlabhq,SVArago/gitlabhq,daiyu/gitlab-zh,dplarson/gitlabhq,dreampet/gitlab,mr-dxdy/gitlabhq,icedwater/gitlabhq,jirutka/gitlabhq,dreampet/gitlab,ikappas/gitlabhq,louahola/gitlabhq,mr-dxdy/gitlabhq,duduribeiro/gitlabhq,jirutka/gitlabhq,daiyu/gitlab-zh,stoplightio/gitlabhq,ttasanen/gitlabhq,icedwater/gitlabhq,Datacom/gitlabhq,icedwater/gitlabhq,martijnvermaat/gitlabhq,Soullivaneuh/gitlabhq,LUMC/gitlabhq,stoplightio/gitlabhq,mr-dxdy/gitlabhq,shinexiao/gitlabhq,dreampet/gitlab,jrjang/gitlab-ce,Datacom/gitlabhq,ferdinandrosario/gitlabhq,t-zuehlsdorff/gitlabhq,htve/GitlabForChinese,dplarson/gitlabhq,cui-liqiang/gitlab-ce,LUMC/gitlabhq,icedwater/gitlabhq,mrb/gitlabhq,larryli/gitlabhq,ferdinandrosario/gitlabhq,shinexiao/gitlabhq,t-zuehlsdorff/gitlabhq,jrjang/gitlab-ce,jrjang/gitlab-ce,Datacom/gitlabhq,iiet/iiet-git,jrjang/gitlabhq,darkrasid/gitlabhq,screenpages/gitlabhq,axilleas/gitlabhq,dwrensha/gitlabhq,allysonbarros/gitlabhq,yatish27/gitlabhq,martijnvermaat/gitlabhq,iiet/iiet-git,duduribeiro/gitlabhq,t-zuehlsdorff/gitlabhq,shinexiao/gitlabhq,screenpages/gitlabhq,t-zuehlsdorff/gitlabhq,cui-liqiang/gitlab-ce,martijnvermaat/gitlabhq,mrb/gitlabhq,ttasanen/gitlabhq,SVArago/gitlabhq,dreampet/gitlab,darkrasid/gitlabhq,LUMC/gitlabhq,shinexiao/gitlabhq,mr-dxdy/gitlabhq,duduribeiro/gitlabhq,screenpages/gitlabhq,htve/GitlabForChinese,koreamic/gitlabhq,screenpages/gitlabhq,ferdinandrosario/gitlabhq,ferdinandrosario/gitlabhq,axilleas/gitlabhq,daiyu/gitlab-zh,mrb/gitlabhq,Soullivaneuh/gitlabhq,ttasanen/gitlabhq,LUMC/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,iiet/iiet-git,allysonbarros/gitlabhq,cui-liqiang/gitlab-ce,jrjang/gitlabhq,mmkassem/gitlabhq,mrb/gitlabhq,yatish27/gitlabhq,axilleas/gitlabhq,Soullivaneuh/gitlabhq,Datacom/gitlabhq,darkrasid/gitlabhq,SVArago/gitlabhq,koreamic/gitlabhq,dwrensha/gitlabhq,stoplightio/gitlabhq,yatish27/gitlabhq,allysonbarros/gitlabhq,jrjang/gitlabhq,ikappas/gitlabhq,koreamic/gitlabhq,ttasanen/gitlabhq,htve/GitlabForChinese,openwide-java/gitlabhq,openwide-java/gitlabhq,larryli/gitlabhq,dplarson/gitlabhq,dwrensha/gitlabhq,mmkassem/gitlabhq,louahola/gitlabhq,darkrasid/gitlabhq,mmkassem/gitlabhq,ikappas/gitlabhq,htve/GitlabForChinese,jirutka/gitlabhq,Soullivaneuh/gitlabhq,louahola/gitlabhq,ikappas/gitlabhq,daiyu/gitlab-zh,yatish27/gitlabhq,larryli/gitlabhq,louahola/gitlabhq,axilleas/gitlabhq,duduribeiro/gitlabhq,jrjang/gitlab-ce,dplarson/gitlabhq