Odd behavior while seeking on paused tracks

[mcguffin]

When using the scrub bar (seeking) on a paused track there is some strange behavior:

• WebKit (tested in Safari Desktop + Chrome) automatically resumes playing but does nut update the playing state (= adding a css class .playing to the player)
• Gecko (tested in FF 3.6 + 13) does not update .sc-played width after seek operation. When you resume playing, it starts at the position you seeked.
• IE 7 + 8 behave like Gecko
• IE 9 behaves like Webkit