mrjoes/flask-admin — pull request #314 by zavatskiy (2013-09-20 08:00:42+00:00)
Title: refs #3, fixed sqlalchemy.exc.DataError when saving empty AjaxSelectMultipleField

The problem is that wtfforms calls method getlist (werkzeug.datastructures.ImmutableMultiDict), which for a field with a blank line returns list with one empty element.