(Split off bug 4983)
Given: A client with multiple monitors
When: A new session is requested with client settings:
Size of session: All monitors
Full screen mode
Enable full screen over all monitors
Then: The session will initially start with just one big screen. It will not be resized until the client has connected. Besides causing unnecessary resizes, this means that initial windows might be placed incorrectly etc (reason for bug 4983).
Upstream feature request: