Issue: Single frame glitch when falling back from Track 1 to Track 0.
Description: When setting Track 1 to the EMPTY animation (clearing a track that previously disabled clipping), the renderer should immediately fall back to Track 0 (which has clipping enabled). Instead, there is a single frame where clipping is completely disabled before Track 0 takes over correctly.
Hypothesis: This may be related to mesh deformation on the clipping slot rather than the clipping logic itself.
Environment:
Version: Spine 4.2.43 (Stable)
Attachments: Video and reproduction project files included.
