Thunderbird Flatpak from Fedora does not display its usual blue icon when running (in menu it is fine). Instead the default Wayland "W" yellow icon is used.

Reproducible: Always

Steps to Reproduce:
1.Install Thunderbird Flatpak from Fedora
2.Launch
3.Observe the taskbar or Alt-Tab overlay Thunderbird icon being replaced by "W" icon.
Actual Results:  
The taskbar icon is displaying Wayland's icon.

Expected Results:  
The taskbar should display Thunderbird's the same icon as in the menu, blue swallow.

Operating System: Fedora Kinoite 41
KDE Plasma Version: 6.3.1
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
Kernel Version: 6.13.4-200.fc41.x86_64 (64-bit)
Graphics Platform: Wayland

Can be fixed by the following:

    Start by opening Thunderbird
    Press Alt+F3
    Select More Actions > Configure Special Application Settings
    Add a new property called Desktop file name
    Select “Force” in the property drop-down
    Change the property value to “org.mozilla.Thunderbird“
    Click “OK“

This commit may be the culprit:

https://src.fedoraproject.org/flatpaks/thunderbird/c/4961dbb7f84d1fd6bb2f15471cdfcf0e453d2cfe?branch=stable

Related from upstream:
https://bugzilla.mozilla.org/show_bug.cgi?id=1863262