The bug is present only in 4.1, will be null-merged to 5.0

For InnoDB, check value of thd->transaction.all.innodb_active_trans instead of thd->transaction.stmt.innobase_tid to see if we really need to rollback.


mysql-test/r/innodb_mysql.result:
  Added testcase for bug #22728 "Handler_rollback value is growing"
mysql-test/t/innodb_mysql.test:
  Added testcase for bug #22728 "Handler_rollback value is growing"
sql/handler.cc:
  For InnoDB, check value of thd->transaction.all.innodb_active_trans instead of thd->transaction.stmt.innobase_tid to see if we really need to rollback.