Dragging the end time in the Inspector preview of a clip does not preview animation after the current end time.

repro:
-add any clip with animation to your project
-edit the end time of the clip (everything works)
-now re-edit the end time by dragging it on the timeline...
-when scrubbing "before" the current end time, animation plays as expected.
bug: when scrubbing "after" the current end time, animation no longer plays.

found in...
5.4/animation/dev
...and...
Version 5.4.0b15 (e666369d5069)
Fri, 08 Apr 2016 16:08:21 GMT
Branch: 5.4/animation/dev

not repro in... Version 5.4.0b8