Map Tab search misbehavior

This happens each time every time.
After clicking on the map tier subfolder map subtabs list getting scrolled to the top for no (sane) reason.

Open decently filled Map Tab.
Type a Map name in search input field (preferably T14 map name because the tier has some irrational amount of map types)
The tier button getting highlighted.
Click on the Tier button.
The map list is already scrolled down to the desired map subtab button and the button is already visible and highlighted.
The ungodly long list of maps after short delay scrolled up to the first list line.
???

The scrolling should not occur.
This thing in its current state is very displeasing and in general looks like a bad joke.