Changed condition similar to code in 4.1.

sql/sql_handler.cc

@@ -421,11 +421,12 @@ bool mysql_ha_read(THD *thd, TABLE_LIST *tables,
   if (!lock)
     goto err0; // mysql_lock_tables() printed error message already
 
-  if (cond && ((!cond->fixed &&
-                cond->fix_fields(thd, &cond)) || cond->check_cols(1)))
+  if (cond)
   {
     if (table->query_id != thd->query_id)
       cond->cleanup();                          // File was reopened
+    if ((!cond->fixed &&
+	 cond->fix_fields(thd, &cond)) || cond->check_cols(1))
       goto err0;
   }