LP:643424 - mysqld: protocol.cc:507: void net_end_statement(THD*): Assertion `0' failed in maria-5.3-mwl89.

The following query:

SELECT `pk`
FROM C
WHERE ( `col_int_key` , `col_int_nokey` ) IN (
SELECT `col_int_key` , `col_int_key`
FROM B ) ;

produces the following assertion in maria-5.3-mwl89. Maria-5.3 is not affected.

mysqld: protocol.cc:507: void net_end_statement(THD*): Assertion `0' failed.

backtrace:

/lib/libc.so.6(__assert_fail+0xf8) [0x133d98]
/home/philips/bzr/maria-5.3-mwl89/sql/mysqld(net_end_statement(THD*)+0x1ec) [0x82742e3]
/home/philips/bzr/maria-5.3-mwl89/sql/mysqld(dispatch_command(enum_server_command, THD*, char*, unsigned int)+0x19c1) [0x8290870]
/home/philips/bzr/maria-5.3-mwl89/sql/mysqld(do_command(THD*)+0x273) [0x828ec18]
/home/philips/bzr/maria-5.3-mwl89/sql/mysqld(handle_one_connection+0x152) [0x828bd78]