This is backport from 5.0 of fix for bug #11039


mysql-test/t/innodb.test:
  Backport from 5.0 of test case for bug#11039
mysql-test/r/innodb.result:
  Backport from 5.0 of test case for bug#11039
sql/opt_sum.cc:
  Fix bug #13218:  backport from 5.0 of bug #11039 fix