$ git clone -n https://src.fedoraproject.org/rpms/psi4.git /var/lib/mock/f39-build-2454808-61439/root/chroot_tmpdir/scmroot/psi4
Cloning into '/var/lib/mock/f39-build-2454808-61439/root/chroot_tmpdir/scmroot/psi4'...
$ git fetch origin c9ec821d7ea372dd595fad014052ac90108de66f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/psi4
 * [new ref]         c9ec821d7ea372dd595fad014052ac90108de66f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9ec821 Now tests should run properly as well