$ git clone -n https://src.fedoraproject.org/rpms/elisa-player.git /var/lib/mock/f40-build-2251256-54122/root/chroot_tmpdir/scmroot/elisa-player
Cloning into '/var/lib/mock/f40-build-2251256-54122/root/chroot_tmpdir/scmroot/elisa-player'...
$ git fetch origin 57d66897fdc3ea9ab7d29b40e67b51de4b63fdc2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/elisa-player
 * [new ref]         57d66897fdc3ea9ab7d29b40e67b51de4b63fdc2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 57d6689 24.01.90