$ git clone -n https://src.fedoraproject.org/rpms/kf5-kguiaddons.git /var/lib/mock/f40-build-2292558-56143/root/chroot_tmpdir/scmroot/kf5-kguiaddons
Cloning into '/var/lib/mock/f40-build-2292558-56143/root/chroot_tmpdir/scmroot/kf5-kguiaddons'...
$ git fetch origin 4b5e3294105cc0a1fba94305e31096a69b8cbc45:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kguiaddons
 * [new ref]         4b5e3294105cc0a1fba94305e31096a69b8cbc45 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b5e329 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild