$ git clone -n https://src.fedoraproject.org/rpms/OpenMolcas.git /var/lib/mock/f38-build-side-42-init-devel-933316-28750/root/chroot_tmpdir/scmroot/OpenMolcas
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-933316-28750/root/chroot_tmpdir/scmroot/OpenMolcas'...
$ git fetch origin 51da32913e9bea48c4725125d1a33a044d6fe8ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/OpenMolcas
 * [new ref]         51da32913e9bea48c4725125d1a33a044d6fe8ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51da329 Update to 23.02.