New upstream release 4.5.0:

• Make require_all_comps_packages option work for DNF backend. It aborts the compose if any explicitly configured package is missing.
• Stop cloning the same git repository multiple times during the same compose. If the same data is needed multiple times, it will be reused rather than cloned again.
• Experimental support for composes without direct access to Koji volume over NFS has been added. See https://docs.pagure.org/pungi/koji.html#getting-data-from-koji for more details.