Holding a mouse button and pressing a keyboard key disables mouse input on Sway Atomic

[ribbanya]

Describe the bug
When a mouse button is held, and then a keyboard button is pressed, mouse input stops working. This includes the cursor but I believe it also affects any additional mouse button input. I believe that whatever mouse buttons were held before pressing a keyboard button are held until all buttons are released.

To Reproduce
Please describe the steps needed to reproduce the bug:

1. Open https://shawon9324.github.io/apps/keytester/ or any game or application that uses keyboard and mouse.
2. Press and hold any mouse button.
3. Press any keyboard key (while holding the mouse button).
4. Move the cursor (it should be unable to move).
5. Release the keyboard and mouse buttons.
6. Move the cursor (it should work again).

Expected behavior
Pressing the mouse and keyboard buttons should not impact the ability to use the cursor or mouse buttons.

OS version:
It is from the Fedora-Sericea-40-1.14-x86_64 image. It is no longer installed so I cannot provide the requested output.

Additional context
Originally posted to wayblueorg/wayblue#55. This issue does NOT affect the non-atomic Sway spin. It also does not affect any other atomic spins, such as Silverblue or Kinoite, if you layer sway onto them.

Below is a table of tested images.

✔️ = the issue is ABSENT
❌ = the issue is PRESENT

❔	Image
✔️	Fedora Sway Spin 40
❌	Fedora Sway Atomic 40
✔️	Fedora Silverblue 40
✔️	Fedora Silverblue 40 under layered sway
✔️	ublue/bazzite
✔️	ublue/bazzite under layered sway
❌	ublue/sericea-main*
✔️	wayblueorg/hyprland
✔️	wayblueorg/hyprland under layered sway
❌	wayblueorg/sway*

* Built on Sway Atomic.

[travier]

I can "reproduce" the mouse stops working element on Kinoite 41 with the above website, only when pressing characters, not when pressing left/right/top/down buttons for example.

[travier]

It might be good to report that to the Sway SIG in Fedora as those folks are more versed into Sway than us here: https://gitlab.com/fedora/sigs/sway/SIG/-/issues/?sort=updated_desc&state=opened&first_page_size=100

[ribbanya]

I can "reproduce" the mouse stops working element on Kinoite 41 with the above website, only when pressing characters, not when pressing left/right/top/down buttons for example.

This matches my experience.

It might be good to report that to the Sway SIG in Fedora as those folks are more versed into Sway than us here: https://gitlab.com/fedora/sigs/sway/SIG/-/issues/?sort=updated_desc&state=opened&first_page_size=100

Will do.