Sprite2D replaces Polygon2D texture when changing z_index

[Demonfir3]

Tested versions

4.3 dev 1

System information

Windows 11 - Vulkan (Forward+) - RTX 4060

Issue description

I was trying to add background elements to my scene and noticed that changing z_index of Sprite2D node, changes Polygon2D texture to the same texture that Sprite2D holds. It happens when z_index of Sprite2D and Polygon2D is equal or lower. Changing Sprtie2D node to Polygon2D node fixes the issue.

_.node_2d2.tscn.-.minimal_project.-.Godot.Engine.2023-12-27.12-49-53.mp4

Steps to reproduce

1. Open project provided.
2. Open player_3.4_v3/node_2d2.tscn
3. Change z_index of a "WallChainLong" node.

Minimal reproduction project (MRP)

minimal_project2.zip