Server hangs on DROP DATABASE after failing LOCK TABLES on Spider table

--disable_query_log

--disable_result_log

--source ../../t/test_init.inc

--enable_result_log

--enable_query_log

--connection child2_1

CREATE DATABASE auto_test_remote;

USE auto_test_remote;

eval CREATE TABLE tbl_a (

    a INT

) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;

--connection master_1

CREATE DATABASE auto_test_local;

USE auto_test_local;

eval CREATE TABLE tbl_a (

    a INT

) $MASTER_1_ENGINE $MASTER_1_CHARSET COMMENT='table "tbl_a", srv "s_2_1"';

eval CREATE TABLE tbl_b (

    a INT

) $MASTER_1_ENGINE $MASTER_1_CHARSET;

LOCK TABLES tbl_a WRITE;

--error 1429

LOCK TABLES tbl_b READ, tbl_a READ;

--connection master_1

DROP DATABASE IF EXISTS auto_test_local;

--connection child2_1

DROP DATABASE IF EXISTS auto_test_remote;

--disable_query_log

--disable_result_log

--source ../t/test_deinit.inc

--enable_query_log

--enable_result_log

!include include/default_mysqld.cnf

!include ../my_1_1.cnf

!include ../my_2_1.cnf