[winswitch] Odd behaviour in xpra

[Anthony Stone]

Hello,

I'm using xpra v4.2.2-r0 under Ubuntu 18.04 on both server and client. I 
find that sometimes, when I type a command, the response is just a blank 
line, with no command output and with the cursor left where the end of 
the new command prompt would be. Sometimes the command output and a new 
prompt appear after a pause, over-writing the original blank response. 
Hitting the return key causes them to appear anyway, with an extra prompt.

It's not a serious problem but it's a bit irritating.

Anthony