Testing fk to_field behavior.
Testing fk to_field behavior.

jarrahwu/peewee,zhang625272514/peewee,coleifer/peewee,coleifer/peewee,Sunzhifeng/peewee,bopo/peewee,stas/peewee,Dipsomaniac/peewee,d1hotpep/peewee,jnovinger/peewee,zhang625272514/peewee,mackjoner/peewee,ronyb29/peewee,new-xiaji/peewee,Dipsomaniac/peewee,wenxer/peewee,new-xiaji/peewee,Sunzhifeng/peewee,d1hotpep/peewee,Dipsomaniac/peewee,new-xiaji/peewee,coreos/peewee,softside/peewee,coleifer/peewee,fuzeman/peewee,Sunzhifeng/peewee,ghukill/peewee,py4a/peewee,jnovinger/peewee,teserak/peewee,coreos/peewee,zhang625272514/peewee,bopo/peewee,fuzeman/peewee,jarrahwu/peewee,jarrahwu/peewee,wenxer/peewee,lez/peewee,coreos/peewee,bopo/peewee