System and IINA version:

• macOS 12.4
• IINA 1.3.0 build 132

Steps to reproduce:

1. Open IINA, go to Preferences > Key Bindings.
2. In the current config, make sure there are no existing bindings containing set window-scale.
3. Add these lines to the current config:

   Shift+F set window-scale 1.0
   F set window-scale 0.5
   Shift+f set window-scale 2.0

4. Play a video, then hold Shift and type "f"
5. Also check Video menu

Expected behavior:

• Video goes to double size
• Video menu has only one binding for Shift+F, and that's the last one

Actual behavior:

• Video goes to half size or regular size (usually)
• Same binding is set in the menu 3 times

• MPV does not have this problem.