$ git clone -n https://src.fedoraproject.org/rpms/massif-visualizer.git /var/lib/mock/f38-build-side-42-init-devel-784865-27954/root/chroot_tmpdir/scmroot/massif-visualizer
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-784865-27954/root/chroot_tmpdir/scmroot/massif-visualizer'...
$ git fetch origin 7b3ff3e80e05e93114251c4787ed3cd9296558da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/massif-visualizer
 * [new ref]         7b3ff3e80e05e93114251c4787ed3cd9296558da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b3ff3e Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild