When SourceTree performs its regular `git status` (or any forced update by using cmd + R), the right of the window (where you can see the changed lines in the file) updates as well. The update is good, but the scroll position jumps back to the top. Could you please save the scroll position when that happens?

This causes major frustration in our team, especially because SourceTree seems to reload the status quite often; reading a large file then becomes impossible