Can't set Version to nothing (BB-1333)

Issue #2536 resolved
Peter Fein
created an issue

On , I created a bunch of bugs with version 0.5.0, then decided that I wanted a null version for them. I deleted the version in the issues Admin, and updated all the bugs.

Despite messages indicated the version had been deleted: , the bug still shows version 0.5.0 both in it's summary and the queries.