Copied from https://www.mediawiki.org/wiki/Topic:Tv6hohgrc48iym9o by 197.218:
Steps to reproduce:
Expected:
An annotation on the side bar indicating that "something" within a reference tag changed.
Actual output
No highlighting for changes, with some unrelated text in the visual diff.
Notes:
This is a pretty common case. Someone removed a template parameter "unused_data=@ http://www.bangladesh-pratidin.com" inside a template which is seemingly not supported by the template. The issue is that because that template parameter doesn't seem to alter the page in any way there aren't any visible changes.