Play button clickable while updating

When the client is updating if you mouse-over where the "Play" button usually is, the cursor changes to the "clickable" icon (in my case a finger pointing, vs the normal mouse pointer) and you can click this invisible button, which plays the sound as if you clicked the play button normally. Doesn't appear to do anything else.

Dunno if this is known, and it's probably pretty low priority because it doesn't hurt anyone. Just thought I'd bring it up.

Cheers.