$ git clone -n https://gitee.com/src-opencloudos-rpms/emacs.git /var/lib/mock/dist-oc9-build-126797-76300/root/chroot_tmpdir/scmroot/emacs
Cloning into '/var/lib/mock/dist-oc9-build-126797-76300/root/chroot_tmpdir/scmroot/emacs'...
$ git fetch origin ff92747363c48dd08c7823c77b912aebb686a8d4:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/emacs
 * [new ref]         ff92747363c48dd08c7823c77b912aebb686a8d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff92747 import emacs-29.1-13.tl4