MaxSessions parameter of XDMCP configuration is ignored
Hello!
I found that MaxSessions parameter of [xdmcp] section of /etc/gdm3/custom.conf is ignored. When first connection is already active second simultaneous connection will always fail ("VNC server closed connection message" in Remmina). Tested on headless (running in container; container connected to network via bridge on host, so it have own IPv4) Ubuntu 20.04 (gdm 3.34.1, tigervnc-standalone-server 1.10.1).
As soon as first session terminated, I can connect establish another connection to container, so problem specifically in "simultaneous" part.
This issue could be related to #526 (closed) and #538 (closed), but I am not 100% sure about that.