While in List view with highlight focused item on there's a small section of the field on the right that remains highlighted when you change focus to another item in the same column.
It appears to be that the highlight also covers the space between columns as if you focus something in the first column and then click on white space the highlight gets smaller by the same amount that remains if you change focus to a different item.
And the part of the focus box that remains is only there while focus is still in the same column.
EDIT: Just noticed CTRL+Click updates the highlights correctly, so it may be related to the recent adjustments for updating focus on MouseDown.
EDIT 2: I take back that part about being in the same column, sometimes it remains when I change columns sometimes it doesn't.
EDIT 3: Here's an image of what I'm talking about.

Can no one else replicate this?
EDIT 4: Fixed in 6.30.0039. Thank you!
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