$ git clone -n https://gitee.com/ocs-upgrade/mariadb.git /var/lib/mock/dist-ocs23-base-build-333801-36702/root/chroot_tmpdir/scmroot/mariadb
Cloning into '/var/lib/mock/dist-ocs23-base-build-333801-36702/root/chroot_tmpdir/scmroot/mariadb'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/ocs-upgrade/mariadb
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 800ca59 Upgrade to version 10.11.15