$ git clone -n https://src.fedoraproject.org/rpms/mellowplayer.git /var/lib/mock/f40-build-1967865-25215/root/chroot_tmpdir/scmroot/mellowplayer
Cloning into '/var/lib/mock/f40-build-1967865-25215/root/chroot_tmpdir/scmroot/mellowplayer'...
$ git fetch origin ea2cc6e372562a5707c2132c2bf6f64df094732d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mellowplayer
 * [new ref]         ea2cc6e372562a5707c2132c2bf6f64df094732d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ea2cc6e Update to 3.6.9-0.1.gitd5f3381