TeamGale doesn't recall that in order to fill the edit summary field you need to click on that first - if she doesn't, the text she's typing, although the dialog is visible, ends up in the article instead (FF29, Win8).
If I hit Save changes in any of my browsers (Chrome, FF and Opera) and don't click on the dialog, nothing happens if I keep typing.
However I believe that if it is technically possible, the extra click shouldn't happen, there are no other places where the cursor should end up, and editors seeing it flashing might be encouraged to use the field a little more.
Version: unspecified
Severity: minor
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=64521