Revisions: Prevent fatal error in PHP 8+ when saving a post revision … #23425

Job	Run time
QUnit Tests / Run QUnit tests	2m 27s
Slack Notifications / Prepare notifications	5s
Slack Notifications / Success notifications	2s
Slack Notifications / Fixed notifications	0s
Slack Notifications / Cancelled notifications	0s
Slack Notifications / Failure notifications	0s
Failed workflow tasks	0s
	2m 34s

Provide feedback