Fix animation regression from 5331

[kurkle]

Fixes: #6104

Pen showing 6104 fixed
No regression in timing

Its fixed by making sure we are advancing whether the start time was reset or not.

[benmccann]

Thanks for the quick fix @kurkle! I don't know the animation code well enough to review, so will let the others review this one

[simonbrunel]

Its fixed by making sure we are advancing whether the start time was reset or not.

I though an animation could only be cancelled, where do we reset the start time for an existing animation?

[kurkle]

Went through the issue with @simonbrunel and found out its really just because if we start at 0, nothing changes before the next animation starts at 0. When starting from 1, some transition happens every time.

[simonbrunel]

Thanks @kurkle for this prompt fix