$ git clone -n https://src.fedoraproject.org/rpms/R-presser.git /var/lib/mock/f39-build-1964557-43282/root/chroot_tmpdir/scmroot/R-presser
Cloning into '/var/lib/mock/f39-build-1964557-43282/root/chroot_tmpdir/scmroot/R-presser'...
$ git fetch origin a17f3816c8a96b6bdd6ae1e2e73765d6338d15e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-presser
 * [new ref]         a17f3816c8a96b6bdd6ae1e2e73765d6338d15e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a17f381 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild