Steps to replicate the issue (include links if applicable):
- edit a page in Page namespace with a low, but wide scan, eg. https://pl.wikisource.org/w/index.php?title=Strona:Artyku%C5%82_o_Zofii_Rogosz%C3%B3wnie,_Bluszcz_(1924)_R57_nr21-24.pdf/24&action=edit
- enable header & footer
What happens?:
The edit summary field overlaps page footer, see below
What should have happened instead?:
The fields should not overlap
The page layout in other cases should remain unchanged