RC1, so apologies if already looked at. I recently let my session expire whilst writing a post. When I returned to publish I got an "unspecified error" error message. This should probably be more informative, or redirect to log in, or pop up log in box.
I couldn't actually reproduce this issue as is, but I did see where a mistake could come from, so I just changed that. You should get an error about needing to be logged in.
