$ git clone -n https://src.fedoraproject.org/rpms/fedora-jam-kde-theme.git /var/lib/mock/f42-bootstrap-3533739-46421/root/chroot_tmpdir/scmroot/fedora-jam-kde-theme
Cloning into '/var/lib/mock/f42-bootstrap-3533739-46421/root/chroot_tmpdir/scmroot/fedora-jam-kde-theme'...
$ git fetch origin 6fc60ada6944d726e7762cd6ee3833d3e2527d4a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fedora-jam-kde-theme
 * [new ref]         6fc60ada6944d726e7762cd6ee3833d3e2527d4a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6fc60ad Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild