with_labels_details does not work for merge request rest api calls

https://gitlab.com/api/v4/projects/28912282/merge_requests?with_labels_details=true with_labels_details property does not work for merge requests. Labels are not expanded

Screenshot_2022-12-29_at_16.37.38

But it works perfectly for issues. https://gitlab.com/api/v4/projects/28912282/issues?with_labels_details=true

Screenshot_2022-12-29_at_16.38.28