Only affects win32 client connected over ssh.
This looks like a deadlock in the SSH subprocess pipe closing. r11395 fixes that, I don't like re-ordering the close sequence like this, especially this late in the release cycle - but that's the only fix I could come up with. And it doesn't seem to break other clients.
An updated beta build has been uploaded.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1053