AnimatedTexture doesn't work with AtlasTexture

[Shadowblitz16]

Tested versions

Reproducible in 4.4 stable.

System information

Debain 13

Issue description

This has been a bug in godot since 3.0.
Basically you can't use AtlasTextures inside AnimatedTexture.

The way I see it any texture that fits into the slot in the property browser should work.

Steps to reproduce

• Open the scene in the provided project.
• Select the TextureRect.
• Goto the inspector and expend the texture field see the data
• See how it works on in the scene.

Minimal reproduction project (MRP)

animated-texture-test.zip