tomchristie/django-rest-framework — pull request #1003 by aburgel (2013-07-24 21:30:06+00:00)
Title: Add support for removing field files by sending an empty string

This fixes issue #937. It allows you to remove a file from a FileField by sending an empty string.

It includes a test case. I modified another test to make things a little simpler, but I manually verified that the old test still works properly.