Good news / Bad news.
We've finally found a workaround for this. But one is not free. The cause of the problem is identified to be our "smooth
progress" scheme which does not show visible progress dialog if some process ends within 500msec. Switching off that
stuff makes Hide&Quit work like a charm. On other hand there is an often situation progress dialog appears and hides
immediately producing a kind of flickering. Though I think having Hide&Quit enabled is more important so this workaround
will be included into 4.5 release with hope in mind to solve this a some more gentle way in the nearest future.
What you think?
IntelliJ Labs / JetBrains Inc.
"Develop with pleasure!"