$ git clone -n https://src.fedoraproject.org/rpms/workflow.git /var/lib/mock/f40-build-2724139-73102/root/chroot_tmpdir/scmroot/workflow
Cloning into '/var/lib/mock/f40-build-2724139-73102/root/chroot_tmpdir/scmroot/workflow'...
$ git fetch origin 9cb0742c84dfc4d88c26e047975da04fb03d19e6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/workflow
 * [new ref]         9cb0742c84dfc4d88c26e047975da04fb03d19e6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cb0742 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild