Last modified: 2013-07-07 00:32:40 UTC
Start the visual editor on some long article that doesn't fit on one screen. Scroll down, start a new line and select "Heading" (or any other option) from the format drop down menu. At that point, the article will inappropriately scroll to the top.
Yeah, this is a quite bad inconvenience for editing a proper-length page; merging with bug 50792, the initial report. *** This bug has been marked as a duplicate of bug 50792 ***