This was modified and is by design as many users were not expecting the old behavior. To do this you should hold alt and rotate.
Rotating a constraint does not update its range of motion based off of angular limits. The user who reported this also mentioned that migrated constraints do not see this issue (eg: migrating a physics asset with constraints made in 4.20 to 4.21 works without an issue) but rotating them after migration to a version where this issue is present makes it occur.
This occurs in 4.21.
This is however a regression from 4.20 where it did not occur.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-72542 in the post.