Manually delete GuardianObjectPermission in reverse data migration for adding guardian to nodes.
Manually delete GuardianObjectPermission in reverse data migration for adding guardian to nodes.

Since we're now importing the group model with apps.get_model('auth.Group') before deleting group, we need to manually delete the GroupObjectPermission objects.  They are no longer automatically deleted for us.

mattclark/osf.io,aaxelb/osf.io,aaxelb/osf.io,Johnetordoff/osf.io,baylee-d/osf.io,Johnetordoff/osf.io,cslzchen/osf.io,mattclark/osf.io,CenterForOpenScience/osf.io,mfraezz/osf.io,Johnetordoff/osf.io,cslzchen/osf.io,mfraezz/osf.io,Johnetordoff/osf.io,brianjgeiger/osf.io,adlius/osf.io,saradbowman/osf.io,brianjgeiger/osf.io,saradbowman/osf.io,cslzchen/osf.io,aaxelb/osf.io,CenterForOpenScience/osf.io,felliott/osf.io,adlius/osf.io,brianjgeiger/osf.io,mattclark/osf.io,baylee-d/osf.io,mfraezz/osf.io,felliott/osf.io,adlius/osf.io,brianjgeiger/osf.io,adlius/osf.io,felliott/osf.io,CenterForOpenScience/osf.io,felliott/osf.io,mfraezz/osf.io,CenterForOpenScience/osf.io,aaxelb/osf.io,baylee-d/osf.io,cslzchen/osf.io