$ git clone -n https://src.fedoraproject.org/rpms/mrchem.git /var/lib/mock/f38-build-side-42-init-devel-1111321-30079/root/chroot_tmpdir/scmroot/mrchem
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1111321-30079/root/chroot_tmpdir/scmroot/mrchem'...
$ git fetch origin 3f1ea117e6f39f6e831b0968e6f32cdc1838e2c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mrchem
 * [new ref]         3f1ea117e6f39f6e831b0968e6f32cdc1838e2c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f1ea11 Re-enable creation of shared library