App launcher on Linux opens a new icon

[DireMunchkin]

Describe the bug
Since version 1.10 there was a change in the behavior of the app launcher. I used to be able to pin the app launcher and once the program is open I can click or use Super+<n> hotkey to switch to it. Now the app launcher opens a new icon, which cannot be pinned.

To Reproduce
Steps to reproduce the behavior:

1. Pin the Jellyfin launcher to task bar on Linux, w Cinnamon.
2. Click on it.
3. Minimize the app window.
4. Click on it again.

Expected behavior
I expect the window to be raised or focused, instead it does nothing.

Screenshots

Desktop (please complete the following information):

• OS: Linux Mint 21.3
• Version 1.10.1
• Installation Method: DEB

[7system7]

Same here.

OS: Arch Linux x86_64 
Kernel: 6.9.1-arch1-1 
DE: GNOME 46.1 
WM: Mutter 

[rafalb8]

This is caused by this change 7f72a3e.
Here StartupWMClass was updated, but running

xprop WM_CLASS

shows WM_CLASS(STRING) = "jellyfinmediaplayer", "Jellyfin Media Player"

[M4dMikel]

There is a pull request that should fix this Issue:
#771

(credit goes to https://github.com/solidsnake1298 for creating it)