[BUG] Grouped Window List shows wrong Window Title

 * Cinnamon version: Cinnamon 5.6.7
   - Please specify if you are using the daily builds PPA: no
 * Distribution - Mint 21.1
 * Graphics hardware *and* driver used:
   - NVIDIA Corporation GA104M [GeForce RTX 3070 Mobile / Max-Q]
   - 525.78.01-0ubuntu0.22.04.1
 * 32 or 64 bit: 64
 * Attach ~/.xsession-errors, or /var/log/syslog

xsession-errors.log

Issue

At least following GWL settings are required:

Tab General > Group windows by application => Enabled
Tab Panel > Window Title => Button label

When having multiple windows of an application open on the same monitor these are grouped. Sometimes a title of a closed or inactive window is shown.

For my full GWL config see end of post.

Steps to reproduce

CC @mtwebster I wrote I have no reproduction at https://github.com/linuxmint/cinnamon/issues/11106#issuecomment-1403732592. I found a reliable way to reproduce it now.

Open nemo file manager
Navigate to Documents (GWL shows title "Documents")
Open another nemo file manager (GWL shows title "Home")
Move focus away from nemo. E.g. by clicking on desktop, opening another application, etc.
Close the nemo window with title "Home"
GWL still shows title "Home"

As soon as you focus the nemo "Documents" window the correct title is shown again.

Expected behaviour

GWL should update the title of an application group when the window with the current shown title is closed.

Other information

Configuration info, if applicable

If this bug report is related to an Applet, Desklet or Extension, please paste (or use a pastebin service) the offending extension's settings, if it has any. You can obtain this by opening its configuration, clicking the 'hamburger' button in the upper-right corner of the window, and selecting "Export to a file"

GWL_settings.json.txt

linuxmint / cinnamon