ui/django-post_office — pull request #70 by chrispaolini (2014-08-06 17:11:38+00:00)
Title: Updated context field class to be null=True

This is specific to issues created by JSONField and that in order to get a valid empty value with PostgreSQL we need null=True so JSONField will set the value right. Without this fix Django will produce a validation error on records which will contain < "" > instead of a null value as needed by PostgreSQL.