The use of the middle mouse button (button 3 on MAC) temporary disables the pgdn and pgup keys

Hi there! I believe I’ve found a bug.

  1. Change the view to Page Mode.

  2. Use the middle mouse button to scroll the page a bit.

  3. Try to use PGDN or PGUP.

    Result: the PGDN and PGUP keys will work only after you’ve clicked once in the score.