$ git clone -n https://gitee.com/src-opencloudos-rpms/mariadb.git /var/lib/mock/dist-oc9-build-241797-82896/root/chroot_tmpdir/scmroot/mariadb
Cloning into '/var/lib/mock/dist-oc9-build-241797-82896/root/chroot_tmpdir/scmroot/mariadb'...
$ git fetch origin 8b08714d0276f581258b0dbc62bf80d9095446c0:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mariadb
 * [new ref]         8b08714d0276f581258b0dbc62bf80d9095446c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b08714 import mariadb-10.11.18-1.tl4