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
25393	Cannot add TextField with unhashable default with MySQL	Ville Skyttä	nobody	"Adding a TextField that has an unhashable default fails with MySQL, for example with `{}` as the default:

{{{
Traceback (most recent call last):
[...]
  File ""[...]/django/db/backends/mysql/schema.py"", line 53, in add_field
    if self.skip_default(field) and field.default not in {None, NOT_PROVIDED}:
TypeError: unhashable type: 'dict'
}}}

One use case for fields like this is JSONField at https://github.com/bradjasper/django-jsonfield"	Bug	closed	Database layer (models, ORM)	dev	Normal	fixed			Ready for checkin	1	0	0	0	0	0