A fix for "IDEA-108038 Dialog pops up between windows" protected by ide.mac.modalDialogsOnFullscreen.
EA-46461 - NPE: RuntimeConfigurationProducer.<init>
IDEA-108079 Strange behaviour when attach sources
IDEA-107291 "Unshelve" into a new changelist puts new files into active changelist for HG

*CheckinEnvironment.scheduleUnversionedFilesForAddition method is async for hg, so HgVcs.fileListenerIsSynchronous should return false.