ACL for all files in folder, but different ACL for parent folder (eq. delete permission)

We have the situation, that we share groupfolders with member-content, management-content and public-content of a group. To realize this we created three subfolder (member, management, public) and three groups with advanced permissions to the subfolder.

Furthermore wie deny the write/delete access for the three groups to the main-folder, to avoid, that user can create new folder beside the three subfolder we created. Of course user should also not be able to delete the subfolder. Unfortunately - if we set the advanced permission do deny deleting user are also not able do delete files inside a subfolder.

Solution: The possibility of setting advanced-permission with wildcard to all files inside a folder, combined with different advanced-permissions of the parent-folder.

Best regards
Simon

Start by tracing how groupfolders handles advanced permissions and inheritance between a parent folder and its subfolders. Review the existing permission-related tests and identify where wildcard rules for files inside a folder would belong. Done means users cannot modify or delete the configured subfolders while retaining the intended permissions for files within them.