fix(files): Stop overwriting scan_permissions#55374
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Signed-off-by: provokateurin <kate@provokateurin.de>
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Copying a file from a groupfolder with ACL will result in a filecache entry with the ACL permissions still applied.
https://github.com/nextcloud/groupfolders/blob/3dfba93b129d5d0f329378c08bdb8c7b7b98d6d5/lib/ACL/ACLCacheWrapper.php#L47-L48 sets
scan_permissionsfirst and then applies the ACL permissions to thepermissions. After that the CachePermissionMasks overwrites thescan_permissionswith thepermissionsthat already include the ACL permissions. tl;dr: Never overwrite thescan_permissionsif they are already set, as they must be the original permissions.