In set_parent(), call save() before get_slug().
In set_parent(), call save() before get_slug().

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