$ git clone -n https://src.fedoraproject.org/rpms/morphio.git /var/lib/mock/f38-build-side-42-init-devel-828208-28366/root/chroot_tmpdir/scmroot/morphio
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-828208-28366/root/chroot_tmpdir/scmroot/morphio'...
$ git fetch origin c2a6e4cd36446dd7f9e1801add98174ff3e9e79d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/morphio
 * [new ref]         c2a6e4cd36446dd7f9e1801add98174ff3e9e79d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c2a6e4c Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild