$ git clone -n https://gitee.com/opencloudos-stream/sendmail.git /var/lib/mock/dist-ocs23-build-50866-2151/root/chroot_tmpdir/scmroot/sendmail
Cloning into '/var/lib/mock/dist-ocs23-build-50866-2151/root/chroot_tmpdir/scmroot/sendmail'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/sendmail
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75c6047 !1 Rebuilt for ghostscript 10.01.2 Merge pull request !1 from cunshunxia/master