[Buildbot-devel] Interlocked forever

[Dobes Vandermeer]

Upon further investigation, it looks like another cause of this is the
feature where you can have the builder(s) not run if they are not
interested in a change.  Since they don't run, their change number
isn't incremented and the watcher of the interlock stays interlocked
waiting for the feeder to update to that build number - which never
will happen.

I'll try and find a way to update the build number of the feeder
stored in the interlock when a change is ignored.