Improvement: "Fast scroll" undo

[fridlmue]

In the timeline there appears the silica "fast scroll" buttons of to go to the top or bottom of the list.
In Piepmatz relatively often I accidentally hit one of them when scrolling around. Then I have to search where I lost track manually. It would be super nice to have a little "unscroll" button popping up or a visual hint where to stop scrolling back.