Resizing window breaks Label3D when using "canvas_items" stretch mode due to font oversampling

[RedMser]

Godot version

4.0.dev (222e489)

System information

Windows 10, Vulkan Clustered

Issue description

Label3D turns into white rectangles when resizing the window if using "canvas_items" stretch mode.

Steps to reproduce

To re-create the MRP:

• Create a simple 3D scene with camera pointing at a Label3D with text on it
• Set Project Setting display/window/stretch/mode to canvas_items

Now you have the same setup as the MRP. Finally to get the broken behavior:

• Launch the game and resize the game window

Minimal reproduction project

resize_window_label3d.zip

[Calinou]

cc @bruvzg

I remember encountering this during Label3D's development, but it was fixed back then.