AnimationPlayer can't queue the same animations

[irmozius]

Godot version

4.0 beta 8+

System information

Nobara Linux

Issue description

If an animation finishes, then is told to play again, the related AnimationPlayer will completely freeze, but only if it is trying to blend.

Steps to reproduce

1. Run the MRP
2. Press up to play the corresponding animation
3. Press left while this animation is playing to queue the left one
4. Observe that this 'queued' animation plays normally
5. Allow the animation to stop
6. Press up once more
7. While the animation is playing, try to queue the same animation by pressing up again
8. Observe that the animation freezes

Minimal reproduction project

https://github.com/irmozius/repeat-anim-glitch

[TokageItLab]

The blending feature of AnimationPlayer is outdated and will be remade in the future as godotengine/godot-proposals#5972.

[TokageItLab]

This is due to the inability to blend identical animations; it may be possible to fix this at the same time as #70338.

[MJacred]

@TokageItLab: Was this fixed with #80813 (same PR that fixed #70338)?

[TokageItLab]

Not yet