Steps to reproduce:
Visit https://meta.wikimedia.org/w/index.php?title=Template:H:Interwiki_linking&action=edit&oldid=322919 without the permission to edit
Expected result:
Like https://meta.wikimedia.org/w/index.php?title=Template:H:Interwiki_linking&action=edit, the source is shown, but not editable, or a message is shown explaining why there is no source
Actual result:
Permission error, source is not shown nor a message explaining why not