$ git clone -n https://src.fedoraproject.org/rpms/elementary-code.git /var/lib/mock/f40-build-2523788-61809/root/chroot_tmpdir/scmroot/elementary-code
Cloning into '/var/lib/mock/f40-build-2523788-61809/root/chroot_tmpdir/scmroot/elementary-code'...
$ git fetch origin 49a454a67d99aedc4e0476a963ff6fa7ecc57a25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/elementary-code
 * [new ref]         49a454a67d99aedc4e0476a963ff6fa7ecc57a25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49a454a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild