id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
11866	"non-null FK to a CharField primary key fails when key value is the empty string, giving ""[model.fk_col] may not be NULL"""	Andrew Badr	nobody	"Model A has a CharField primary_key. Model B has a ForeignKey field to model A. If an instance of A has a row with an empty-string in the primary key column, no B instance can point to it. Attempting to create such a B instance fails with ""[model.fk_col] may not be NULL"". Repro'd with PG and sqlite3."	Bug	closed	Database layer (models, ORM)	1.1	Normal	duplicate			Accepted	0	0	0	0	0	0