FamousInternal/transitions — pull request #1 by timjchin (2014-05-02 18:58:10+00:00)
Title: Nan fix

With the latest changes to specParser, if there ever was a time that you were animating a tween transition that has [number, undefined], it would return [number, NaN]. This adds a check to TweenTransition that only performs the interpolate if it is not equal to undefined.

@dmvaldman