$ git clone -n https://src.fedoraproject.org/rpms/c-graph.git /var/lib/mock/f40-build-796127-140465/root/chroot_tmpdir/scmroot/c-graph
Cloning into '/var/lib/mock/f40-build-796127-140465/root/chroot_tmpdir/scmroot/c-graph'...
$ git fetch origin 025d0ab1dd34be4ef3b8d7ad68a2540ab3ac5d90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/c-graph
 * [new ref]         025d0ab1dd34be4ef3b8d7ad68a2540ab3ac5d90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 025d0ab Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild