Steps from a win32 client:
The eclipse window ends up clamped to a tiny size in the bottom left corner because MS Windows gave us coordinates in the -32000 range. r15044 + r15045 fix this by ignoring the map event, the window stays minimized when we re-connect. We don't do that on other platforms because there may not be a way to de-iconify it!
Alternatively, we could detect the invalid coordinates and clamp them, or just ignore them and map at 0,0.
r15117 deiconifies the window when we get a map event, this makes win32 consistent with the other platforms. (and maybe this should be backported)
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1433