$ git clone -n https://src.fedoraproject.org/rpms/gupnp-av.git /var/lib/mock/f45-build-13255-448/root/chroot_tmpdir/scmroot/gupnp-av
Cloning into '/var/lib/mock/f45-build-13255-448/root/chroot_tmpdir/scmroot/gupnp-av'...
$ git fetch origin 4e6cdc1206026683d9bdcb0ff3a9f58ff293e400:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gupnp-av
 * [new ref]         4e6cdc1206026683d9bdcb0ff3a9f58ff293e400 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e6cdc1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild