From Validation error: Validate approvals before merge Number... when Approvers is a group

Summary

On the gitlab.com website.

This project is forked, is in danteinc/ouli subgroup, approvers and approvals required comes from project settings.

I can create a merge request where the approvals required is set to 1. The approvers are a group: danteinc-ouli. Then I attempt to edit the merge request (ex: add WIP: to the title) and I get the error

"The form contains the following error: Validate approvals before merge Number of approvals must be greater than those on target project"

even though it let me create it with the same settings.

Steps to reproduce

1. Create a merge request that has 1 Approvals required and add a group to the Approvers list
2. Edit the merge request and hit save
3. Form is rejected with the above validation message

What is the current bug behavior?

Form displays the above validation error

What is the expected correct behavior?

Form should submit successfully

Relevant logs and/or screenshots

Project Settings

Validation Error

Merge request approval settings

Output of checks

This bug happens on GitLab.com

Possible fixes

Logic might be comparing the list count to the Approvals required number and not counting how many members are in the group. Not sure why the same validation message doesn't come up when creating the merge request.

Workaround

If you set the approvals required to 0 it lets you hit save, and when you go to edit the MR again Approvals required is still set at 1