$ git clone -n https://gitee.com/ocs-bot/sendmail.git /var/lib/mock/dist-ocs23-build-116014-7979/root/chroot_tmpdir/scmroot/sendmail
Cloning into '/var/lib/mock/dist-ocs23-build-116014-7979/root/chroot_tmpdir/scmroot/sendmail'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/ocs-bot/sendmail
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21bfe1a Upgrade to version 8.17.2