$ git clone -n https://src.fedoraproject.org/rpms/qsynth.git /var/lib/mock/f40-build-1183270-21996/root/chroot_tmpdir/scmroot/qsynth
Cloning into '/var/lib/mock/f40-build-1183270-21996/root/chroot_tmpdir/scmroot/qsynth'...
$ git fetch origin 051c6df602c923d958c8bbdc91d7a9656531541d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qsynth
 * [new ref]         051c6df602c923d958c8bbdc91d7a9656531541d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 051c6df Update to version 1.0.0