Can't click the flame graph after scrolling unless I also move the mouse

[mstange]

Steps to reproduce:

1. Open a profile with a scrollable flame graph and an open source view. Example
2. Position your mouse over a box in the flame graph.
3. Scroll up or down, so that a different box is under the mouse.
4. Click or double-click.

Expected results: The function under the mouse should be selected (or shown in the source view, when double-clicking).

Actual results: The selection is reset.

If the mouse is moved after step 3, the next click works.

┆Issue is synchronized with this Jira Task