$ git clone -n https://gitee.com/fundawang/mariadb-connector-c.git /var/lib/mock/dist-an23-build-313981-67458/root/chroot_tmpdir/scmroot/mariadb-connector-c
Cloning into '/var/lib/mock/dist-an23-build-313981-67458/root/chroot_tmpdir/scmroot/mariadb-connector-c'...
$ git fetch origin 1277f7269e3a04872d1c1f812ba17f577a56a4e1:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/mariadb-connector-c
 * [new ref]         1277f7269e3a04872d1c1f812ba17f577a56a4e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1277f72 drop