ID 310376 - WM_COMMAND property is no longer returned when using xprop

Problem summary
WM_COMMAND property is no longer returned when using xprop.
The WM_COMMAND contains the list of flags used to launch Nuke, so using xprop on Linux is a good way of finding out how Nuke was launched.

Customer reported version
nuke.11.0v1

Customer reported platform
centos7

Steps to reproduce

1) Open Nuke

2) Open a Terminal window

3) Run the command "xprop"

4) Selet the Nuke window, is should return a list of properties including WM_COMMAND. From Nuke 11.0v1, it doesn't


Reproduced by support
This problem has been reproduced on:
Nuke 11.0v2 - CentOS 6.8
Nuke 11.0v1 - CentOS 6.8

The issue was not reporduced on:
Nuke 10.5v5 - CentOS 6.8
Nuke 10.5v1 - CentOS 6.8

Could not test on Windows/Mac OSX as the xprop function only seems to work on Linux

Earliest version tested
Nuke 10.5v1 - CentOS 6.8

Expected behaviour
For the xprop command to return the WM_COMMAND propertie

Actual behaviour
It didn't return it