$ git clone -n https://src.fedoraproject.org/rpms/corectrl.git /var/lib/mock/f39-build-1490102-34503/root/chroot_tmpdir/scmroot/corectrl
Cloning into '/var/lib/mock/f39-build-1490102-34503/root/chroot_tmpdir/scmroot/corectrl'...
$ git fetch origin 8b9e892fa9f7ece3c6f30e6e6ba3bdc864d68fb4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/corectrl
 * [new ref]         8b9e892fa9f7ece3c6f30e6e6ba3bdc864d68fb4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b9e892 [packit] 1.3.6 upstream release