$ git clone -n https://src.fedoraproject.org/rpms/emacs-f.git /var/lib/mock/f40-build-2435082-60771/root/chroot_tmpdir/scmroot/emacs-f
Cloning into '/var/lib/mock/f40-build-2435082-60771/root/chroot_tmpdir/scmroot/emacs-f'...
$ git fetch origin f8dd493c095e0df06b12615752027b02cc90654c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-f
 * [new ref]         f8dd493c095e0df06b12615752027b02cc90654c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8dd493 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild