2D Skeletons not visible in Compatibility Mode

[chrisl8]

Tested versions

in Compatibility Mode

v4.3.dev.custom_build [4a30fe5]

Reproducible on Windows when building at commit 4a30fe5 and any commit after that up to and including Master
Not reproducible when building at commit 35cfbdd

System information

Godot v4.3.dev (4a30fe5) - Windows 10.0.22621 - GLES3 (Compatibility) - NVIDIA GeForce RTX 3080 Ti (NVIDIA; 31.0.15.5161) - AMD Ryzen 9 5900X 12-Core Processor (24 Threads)

Issue description

2D textures do not appear to show up at all after #86564 was merged.

Steps to reproduce

Download Godot's Skeleton2D Demo from https://github.com/godotengine/godot-demo-projects/tree/master/2d/skeleton

Open it and run it in Compatibility Mode and the character is not visible on the screen.

Minimal reproduction project (MRP)

Use the Godot demo project https://github.com/godotengine/godot-demo-projects/tree/master/2d/skeleton

[akien-mga]

CC @godotengine/rendering @Giwayume

[clayjohn]

Thanks for the report! Identifying the problematic PR made it a very quick fix