[Bug] Typing Thai character 'ข' triggers layout switch keybinding set for grave key

[aekarita]

Hyprland version

0.56.1

Is this a regression?

No.

What's the bug?

I set keybindings to switch input layouts (us <-> th) using the grave key. However, pressing the Thai character ข unexpectedly triggers the layout switch command, toggling the language layout just like pressing the grave key.

This issue occurs specifically on Hyprland (including when using the new .lua configuration format) and does not occur on other Wayland compositors like COSMIC.

System Information

• OS: Arch Linux
• Compositor: Hyprland
• Config Format: Lua (hyprland.lua)
• Layouts: kb_layout = "us,th"

Reproduction steps

Steps to Reproduce

1. Set up kb_layout = "us,th" in hyprland.lua.
2. Add a layout switch keybinding for the grave key: hl.bind("grave", hl.dsp.exec_cmd("hyprctl switchxkblayout <device> next")).
3. Switch input layout to Thai (th).
4. Type the Thai character ข.

Expected Behavior

Typing ข should output the character ข into the active application without switching the input layout.

Actual Behavior

Typing ข triggers the layout switch action, toggling the input layout between Thai and English identically to pressing the grave key.

Attachments

hyprland.lua config

https://gist.github.com/aekarita/1f26389ce35c8029cb50b2dde0d9defd

Keyboard Visual Reference

For reference, here is the physical key layout being used:

• The red highlighted key is the physical tilde/grave key (used for switching layouts).
• The blue highlighted key is the physical - key (which outputs 'ข' in Thai layout, but unexpectedly triggers the grave keybinding instead).

I acknowledge that:

• I have searched all (open and closed) discussions and issues and my problem is not there.

• I have read the Code of Conduct and agree to follow it.

• I wrote this request with my own hands, my own keyboard, and in my own words.