$ git clone -n https://src.fedoraproject.org/rpms/soundtracker.git /var/lib/mock/f39-build-1855575-42408/root/chroot_tmpdir/scmroot/soundtracker
Cloning into '/var/lib/mock/f39-build-1855575-42408/root/chroot_tmpdir/scmroot/soundtracker'...
$ git fetch origin ed97991100e785f6714123dbdb2c8f42d25569f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/soundtracker
 * [new ref]         ed97991100e785f6714123dbdb2c8f42d25569f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed97991 Update to 1.0.4