Last modified: 2013-03-13 12:59:58 UTC
We moving to next message, we made the viewport to scroll so that the just edited/viewed message is visible above the newly opened message. However, now it is hidden by the floating filter selector bar.
Patch in https://bugzilla.wikimedia.org/show_bug.cgi?id=45703
https://gerrit.wikimedia.org/r/#/c/53352/