Restore old behavior around diff notes to outdated discussions
Restore old behavior around diff notes to outdated discussions

dreampet/gitlab,darkrasid/gitlabhq,screenpages/gitlabhq,screenpages/gitlabhq,htve/GitlabForChinese,darkrasid/gitlabhq,iiet/iiet-git,jirutka/gitlabhq,shinexiao/gitlabhq,mr-dxdy/gitlabhq,t-zuehlsdorff/gitlabhq,LUMC/gitlabhq,htve/GitlabForChinese,LUMC/gitlabhq,iiet/iiet-git,axilleas/gitlabhq,shinexiao/gitlabhq,t-zuehlsdorff/gitlabhq,openwide-java/gitlabhq,t-zuehlsdorff/gitlabhq,dreampet/gitlab,mr-dxdy/gitlabhq,icedwater/gitlabhq,martijnvermaat/gitlabhq,htve/GitlabForChinese,stoplightio/gitlabhq,dplarson/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,SVArago/gitlabhq,icedwater/gitlabhq,allysonbarros/gitlabhq,openwide-java/gitlabhq,dreampet/gitlab,mmkassem/gitlabhq,allysonbarros/gitlabhq,LUMC/gitlabhq,mmkassem/gitlabhq,mr-dxdy/gitlabhq,openwide-java/gitlabhq,daiyu/gitlab-zh,SVArago/gitlabhq,mr-dxdy/gitlabhq,iiet/iiet-git,dplarson/gitlabhq,allysonbarros/gitlabhq,martijnvermaat/gitlabhq,LUMC/gitlabhq,stoplightio/gitlabhq,dplarson/gitlabhq,screenpages/gitlabhq,dplarson/gitlabhq,SVArago/gitlabhq,icedwater/gitlabhq,axilleas/gitlabhq,SVArago/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,htve/GitlabForChinese,mmkassem/gitlabhq,martijnvermaat/gitlabhq,icedwater/gitlabhq,daiyu/gitlab-zh,darkrasid/gitlabhq,shinexiao/gitlabhq,axilleas/gitlabhq,shinexiao/gitlabhq,jirutka/gitlabhq,jirutka/gitlabhq,martijnvermaat/gitlabhq,allysonbarros/gitlabhq,daiyu/gitlab-zh,openwide-java/gitlabhq,stoplightio/gitlabhq,screenpages/gitlabhq,dreampet/gitlab,t-zuehlsdorff/gitlabhq,daiyu/gitlab-zh,darkrasid/gitlabhq,axilleas/gitlabhq