Use `to_reference` in system notes.
Use `to_reference` in system notes.

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