$ git clone -n https://src.fedoraproject.org/rpms/mopidy-mpd.git /var/lib/mock/f39-build-1577122-37955/root/chroot_tmpdir/scmroot/mopidy-mpd
Cloning into '/var/lib/mock/f39-build-1577122-37955/root/chroot_tmpdir/scmroot/mopidy-mpd'...
$ git fetch origin 0af6f03275a63f41b31ce4732e663d48e2328a60:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mopidy-mpd
 * [new ref]         0af6f03275a63f41b31ce4732e663d48e2328a60 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0af6f03 fix test failure by cherry-picking from mopidy-mpd's main