Fix broken non-animatable transition fallback

[rreusser]

This PR adds a previously-failing test and corresponding bug-fix for animating bar graphs. Since it was not previously tested, a regression snuck in in the logic that skips non-animatable traces. The updates aren't pretty, but at least now modules that have module.animatable !== true will update.

[etpinard]

a regression snuck in in the logic that skips non-animatable traces.

Do you which particular commit / PR produce this regression?

[rreusser]

It was this commit: a0da51d

If the module was not animatable, continue skipped the next and final instruction in the loop. I appended another instruction, so that pattern became invalid. Just a logic error due to untested behavior 😞

[etpinard]

@rreusser thanks! 💃