Bug #49137 Replication failure on SBR/MBR + multi-table DROP TEMPORARY TABLE

Fixed valgrind failure on PB2.

sql/log_event.cc:
  Added code to fix valgrind failure on PB2.

sql/log_event.cc

@@ -2110,8 +2110,8 @@ START SLAVE; . Query: '%s'", expected_error, thd->query);
       has already been dropped. To ignore such irrelevant "table does
       not exist errors", we silently clear the error if TEMPORARY was used.
     */
-    if (thd->lex->drop_temporary &&
-        thd->net.last_errno == ER_BAD_TABLE_ERROR && !expected_error)
+    if (thd->net.last_errno == ER_BAD_TABLE_ERROR &&
+        !expected_error && thd->lex->drop_temporary)
       thd->clear_error();
     /*
       If we expected a non-zero error code, and we don't get the same error