$ git clone -n https://src.fedoraproject.org/rpms/media-player-info.git /var/lib/mock/f45-build-18212-511/root/chroot_tmpdir/scmroot/media-player-info
Cloning into '/var/lib/mock/f45-build-18212-511/root/chroot_tmpdir/scmroot/media-player-info'...
$ git fetch origin 53647733cbd8da7ef718ea1ac0aefb0e65d2151e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/media-player-info
 * [new ref]         53647733cbd8da7ef718ea1ac0aefb0e65d2151e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5364773 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild