Unable to remove approvers in 9.3.2
See:
If I look at the JSON request, it shows:
utf8:✓
_method:patch
authenticity_token:
merge_request[title]:Fix broken query
merge_request[description]:Fixes gitlab-org/gitlab-monitor#29
merge_request[assignee_id]:64248
merge_request[label_ids][]:
merge_request[approvals_before_merge]:1
merge_request[approver_ids]:
merge_request[approver_group_ids]:
merge_request[target_branch]:master
merge_request[force_remove_source_branch]:0
merge_request[force_remove_source_branch]:1
merge_request[squash]:0
merge_request[lock_version]: