$ git clone -n https://gitee.com/src-opencloudos-rpms/emacs-auctex /var/lib/mock/dist-oc8-build-56988-15199/root/chroot_tmpdir/scmroot/emacs-auctex
Cloning into '/var/lib/mock/dist-oc8-build-56988-15199/root/chroot_tmpdir/scmroot/emacs-auctex'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/emacs-auctex
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4b3ae7 import emacs-auctex-12.1-3.tl3