$ git clone -n https://src.fedoraproject.org/rpms/tnef.git /var/lib/mock/f42-build-3406856-45143/root/chroot_tmpdir/scmroot/tnef
Cloning into '/var/lib/mock/f42-build-3406856-45143/root/chroot_tmpdir/scmroot/tnef'...
$ git fetch origin 9d696da7235c2ce068f1fd3168f3213a75ef7d90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tnef
 * [new ref]         9d696da7235c2ce068f1fd3168f3213a75ef7d90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d696da Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild