Fix security issues when copying groupfolder with advanced ACL
Fix security issues when copying groupfolder with advanced ACL

Using advanced ACL, it is possible that an user has access to a
directory but not to a subdirectory, so the copying use
Common::copyFromStorage instead of Local::copyFromStorage.

Fix https://github.com/nextcloud/groupfolders/issues/1692

Signed-off-by: Carl Schwan <de187642e6c75f60d10f29e52cab54cdf676870d@carlschwan.eu>

nextcloud/server,nextcloud/server,nextcloud/server,nextcloud/server