$ git clone -n https://src.fedoraproject.org/rpms/emacs-epc.git /var/lib/mock/f40-build-2346516-60035/root/chroot_tmpdir/scmroot/emacs-epc
Cloning into '/var/lib/mock/f40-build-2346516-60035/root/chroot_tmpdir/scmroot/emacs-epc'...
$ git fetch origin bf8f9c3d20fe8cf768aabba4ceae71507fef5c9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-epc
 * [new ref]         bf8f9c3d20fe8cf768aabba4ceae71507fef5c9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf8f9c3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild