GDM not killing user X processes on user logout

Solution Verified - Updated 2024-06-14T17:26:36+00:00 -

Issue

After updating GDM from version 3-14.2-12.el7 to version 3.22.3-11.el7, the X process would restart from logging in and logging out at least 63 times, and then it wouldn't work any longer.
$DISPLAY increments on subsequent logins until the next reboot

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