$ git clone -n https://src.fedoraproject.org/rpms/parsec.git /var/lib/mock/f39-build-2548491-61915/root/chroot_tmpdir/scmroot/parsec
Cloning into '/var/lib/mock/f39-build-2548491-61915/root/chroot_tmpdir/scmroot/parsec'...
$ git fetch origin ed3e7bb71d4e85e879b45c85391bf9611ea8c2c1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/parsec
 * [new ref]         ed3e7bb71d4e85e879b45c85391bf9611ea8c2c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed3e7bb v1.3.0