References sections used to be expanded when viewing diffs or independent revisions AFAIK. The behaviour could be changed during last overhaul. Is this coming back?
Related Gerrit Patches:
|mediawiki/extensions/Wikibase : master||Introduce ReadModeViewFactory for diffs and old revisions|
|Resolved||thiemowmde||T146470 [Bug] Editing should be disabled on diffs and old revisions|
|Resolved||thiemowmde||T129836 References sections are not expanded anymore when viewing diffs|