$ git clone -n https://gitee.com/src-opencloudos-rpms/mariadb.git /var/lib/mock/dist-oc9-build-138009-79627/root/chroot_tmpdir/scmroot/mariadb
Cloning into '/var/lib/mock/dist-oc9-build-138009-79627/root/chroot_tmpdir/scmroot/mariadb'...
$ git fetch origin 57c4b5d8fa2038554e0bbf092999b5ffcb94614f:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mariadb
 * [new ref]         57c4b5d8fa2038554e0bbf092999b5ffcb94614f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 57c4b5d import mariadb-10.11.13-1.tl4