There's a trick to reproducing this bug:
1. Begin to play a streaming mp4 clip
2. Seek ahead to a point that hasn't been buffered yet.
3. Drag the playhead back to 0:00.

The scrubber will snap back to wherever it was at the end of step 2, even though the clip playback will restart from 0:00.

We are using flowplayer.commercial-3.2.2.swf and flowplayer.pseudostreaming-3.2.2.swf