Restore 1.6 fix for generic relations.
Restore 1.6 fix for generic relations.

mush42/mezzanine,adrian-the-git/mezzanine,Cajoline/mezzanine,SoLoHiC/mezzanine,jerivas/mezzanine,SoLoHiC/mezzanine,readevalprint/mezzanine,wbtuomela/mezzanine,biomassives/mezzanine,dustinrb/mezzanine,PegasusWang/mezzanine,christianwgd/mezzanine,readevalprint/mezzanine,tuxinhang1989/mezzanine,frankier/mezzanine,viaregio/mezzanine,theclanks/mezzanine,ryneeverett/mezzanine,molokov/mezzanine,frankchin/mezzanine,agepoly/mezzanine,adrian-the-git/mezzanine,vladir/mezzanine,wyzex/mezzanine,agepoly/mezzanine,frankier/mezzanine,emile2016/mezzanine,ZeroXn/mezzanine,Kniyl/mezzanine,christianwgd/mezzanine,industrydive/mezzanine,sjdines/mezzanine,nikolas/mezzanine,vladir/mezzanine,frankchin/mezzanine,ZeroXn/mezzanine,gradel/mezzanine,Kniyl/mezzanine,stephenmcd/mezzanine,dustinrb/mezzanine,promil23/mezzanine,joshcartme/mezzanine,dovydas/mezzanine,geodesign/mezzanine,eino-makitalo/mezzanine,douglaskastle/mezzanine,theclanks/mezzanine,dustinrb/mezzanine,biomassives/mezzanine,stephenmcd/mezzanine,Cicero-Zhao/mezzanine,frankchin/mezzanine,spookylukey/mezzanine,tuxinhang1989/mezzanine,damnfine/mezzanine,PegasusWang/mezzanine,webounty/mezzanine,vladir/mezzanine,dekomote/mezzanine-modeltranslation-backport,dekomote/mezzanine-modeltranslation-backport,dsanders11/mezzanine,jerivas/mezzanine,emile2016/mezzanine,Skytorn86/mezzanine,douglaskastle/mezzanine,sjdines/mezzanine,PegasusWang/mezzanine,dsanders11/mezzanine,sjuxax/mezzanine,webounty/mezzanine,ryneeverett/mezzanine,Cajoline/mezzanine,promil23/mezzanine,agepoly/mezzanine,AlexHill/mezzanine,jjz/mezzanine,AlexHill/mezzanine,theclanks/mezzanine,webounty/mezzanine,Skytorn86/mezzanine,damnfine/mezzanine,joshcartme/mezzanine,christianwgd/mezzanine,Kniyl/mezzanine,adrian-the-git/mezzanine,molokov/mezzanine,viaregio/mezzanine,sjuxax/mezzanine,tuxinhang1989/mezzanine,joshcartme/mezzanine,wyzex/mezzanine,promil23/mezzanine,geodesign/mezzanine,industrydive/mezzanine,eino-makitalo/mezzanine,mush42/mezzanine,Cicero-Zhao/mezzanine,SoLoHiC/mezzanine,jjz/mezzanine,jjz/mezzanine,readevalprint/mezzanine,wbtuomela/mezzanine,batpad/mezzanine,sjdines/mezzanine,biomassives/mezzanine,Cajoline/mezzanine,ZeroXn/mezzanine,stephenmcd/mezzanine,molokov/mezzanine,saintbird/mezzanine,dsanders11/mezzanine,ryneeverett/mezzanine,damnfine/mezzanine,fusionbox/mezzanine,frankier/mezzanine,cccs-web/mezzanine,saintbird/mezzanine,saintbird/mezzanine,dovydas/mezzanine,eino-makitalo/mezzanine,wyzex/mezzanine,industrydive/mezzanine,geodesign/mezzanine,jerivas/mezzanine,mush42/mezzanine,gradel/mezzanine,wbtuomela/mezzanine,fusionbox/mezzanine,gradel/mezzanine,dovydas/mezzanine,sjuxax/mezzanine,Skytorn86/mezzanine,nikolas/mezzanine,spookylukey/mezzanine,batpad/mezzanine,dekomote/mezzanine-modeltranslation-backport,douglaskastle/mezzanine,emile2016/mezzanine,spookylukey/mezzanine,cccs-web/mezzanine,viaregio/mezzanine,nikolas/mezzanine