"Preview page with this template" should not work with pages that do not transclude the template (Community Wishlist/W265/en)
Done
Description
I've used the "Preview page with this template" many times and wondered why my changes weren't being applied, only to realize e.g. I was editing the sandbox and the page was using the live version.
If the specified page does not transclude the template, the server should return an error instead of the unaltered version of the page. Similarly, the autocomplete feature of the textbox should only suggest pages that transclude the template. This is now tracked at W500: Autocomplete for "Preview page with this template" suggests too many irrelevant pages. Previous wishlist surveys: 2023
Assigned focus area
Unassigned
Type of wish
Feature request
Tags
Affected users
Template editors
Phabricator tasks
Other details
Voting