subject of "concurrent insert"
Better fix by Monty: "The previous bug fix didn't work
when using partial keys."


mysql-test/r/myisam.result:
  Bug#14400 - Query joins wrong rows from table which is
              subject of "concurrent insert"
  Added test result
mysql-test/t/myisam.test:
  Bug#14400 - Query joins wrong rows from table which is
              subject of "concurrent insert"
  Added test case