Fixes an issue where discarding or saving an unchanged website page could leave it stuck in editing mode because the editor flag stayed in the URL. This prevents confusing behavior such as mobile preview opening as an editable page instead of a normal preview.

Reload page on save/discard if 'enable_editor' in URL

If no changes made in a page and you discard then it is not removing
enable_editor from the URL.That's why when you open, mobile preview dialog,
it opens the page in editable mode.