Setting mouse mode to confined causes TextureButton hover to stop working (new -after upgrading to Godot 4.2 from 4.1.1)

[Mo32167]

Godot version

v4.2.stable.mono.official [46dc277]

System information

Godot v4.2.stable.mono - Fedora Linux 38 (Thirty Eight) - X11 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1650 SUPER (nvidia; 545.29.06) - Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz (8 Threads)

Issue description

I updated my project from 4.1.1 to 4.2. I noticed that the TextureButton hover textures stopped appearing. After some experimentation I narrowed it down to occurring after setting mouse mode to confined.

Steps to reproduce

1. Make a new project
2. Make a new scene with TextureButton
3. Attach a script and set mouse mode to confined
4. Play the scene and moving the cursor over the TextureButton doesn't result in the hover texture

Minimal reproduction project

• texture_button.tscn shows the issue with a C# script
• texture_buttongd.tscn shows the issue with a GDScript script

hover_issue.zip

[rsubtil]

Bisected to 59c13fe (#80334), cc @Sauermann