jacquev6/PyGithub — pull request #74 by quixotique (2012-09-10 00:42:24+00:00)
Title: Support clearing of issue milestone and assignee

I could find no way to use the PyGithub API to clear an Issue's milestone or assignee. So I created this patch to make Issue.edit() accept None for the milestone and assignee parameters. I have tested it on a real GitHub issue, and it works, but I have not created any test cases.