Alt+left/right arrows behavior changed in latest update

[bwbeard]

In the latest update (I installed it maybe Tuesday 3/20?), I noticed that the alt+arrow key behavior changed, and not for the better. 

Now, when I'm typing in the search bar, and I make a mistake in a previous word, I press alt+left-arrow as I always would when entering text in any application, but instead of going back a word, it restarts the song I'm listening to! And if I press it twice before realizing it, I'm listening to the beginning of a different song! I think enough keyboards these days have multimedia keys that this "feature" is unnecessary and counter-productive, and should be considered a bug -- at least when the focus is on the search bar.

Please revert this change!