Vulkan Mobile: CLIP_ONLY doesn't work with tilemap, shows background clear color

[elvisish]

Godot version

4.0.2 stable

System information

Windows 10, Vulkan, RTX 3060 (466.81)

Issue description

When using CLIP_ONLY setting on Clip Children and the Forward Mobile renderer, it doesn't hide the clipping object, it renders the background color instead.

Steps to reproduce

• Add a sprite object to clip with.
• Add a child sprite to be clipped.
• Set the renderer to Mobile.
• Watch the clip object be rendered as the background/the tileset hall-of-mirrorsing.

Minimal reproduction project

cliptest.zip

[Calinou]

• Related to Vulkan Mobile: Clip Children shows a copy of all nodes in the scene #75956.

[clayjohn]

Sounds like a duplicate of #75956