$ git clone -n https://src.fedoraproject.org/rpms/gtk+extra.git /var/lib/mock/f40-build-2562703-62143/root/chroot_tmpdir/scmroot/gtk+extra
Cloning into '/var/lib/mock/f40-build-2562703-62143/root/chroot_tmpdir/scmroot/gtk+extra'...
$ git fetch origin 2b9fc9986facde333f23acc3d660e4a876737b97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtk+extra
 * [new ref]         2b9fc9986facde333f23acc3d660e4a876737b97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b9fc99 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild