"Unlock track" is unexpectedly displayed as "Lock track" in History

[triska]

OS and Version:

• Operating System: Debian Trixie GNU/Linux
• Shotcut Version: shotcut-linux-x86_64-26.2.26.txz from the project's download page.

Describe the bug

"Unlock track" is unexpectedly displayed as "Lock track" in history.

Steps To Reproduce

1. Start Shotcut
2. Create a new project, unlock_track.
3. Add a video track to the project by pressing: Ctrl+i.
4. Show the History with Ctrl+8
5. Lock the track with Ctrl+l
6. The history gets a new entry called "Lock track", as expected.
7. Unlock the track with Ctrl+l
8. Unexpectedly, the history gets another new entry also called "Lock track".

Expected behavior

The expected result is that the History entry created for unlocking a track is called "Unlock track".

Thank you so much!

Example, showing "Lock" track for multiple subsequent locking and unlocking of the same track: