Default branch protection is not inherited

Summary

• When a group is not protected, new sub-folders are protected, they should inherit the setting from it's parent.
• When you change the parent group to be unprotected, the existing children are not affected.

Steps to reproduce

• Create a group with some sub-groups / folders
• Change the main group to be unprotected by default
• None of the childs are affected
• Even if you create a new sub-folder it will be protected as well

What is the expected correct behavior?

• These changes should be inheritable and affect all the child nodes, much like the 2FA protection

Output of checks

This bug happens on GitLab.com