Fix diff and commit view on merge requests
Fix diff and commit view on merge requests

with new sidebar
Fixes #3981

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