fix break miss in copy an equal node

src/common/backend/nodes/copyfuncs.cpp

@@ -8689,6 +8689,7 @@ void* copyObject(const void* from)
             break;
         case T_ShowEventStmt:
             retval =node_copy_show_event_info((ShowEventStmt *)from);
+            break;
         case T_IndexHintRelationData:
             retval = _copyIndexHintRelationData((IndexHintRelationData *)from);
             break;

src/common/backend/nodes/equalfuncs.cpp

@@ -4436,6 +4436,7 @@ bool equal(const void* a, const void* b)
             break;
         case T_ShowEventStmt:
             retval = node_equal_show_event_info((const ShowEventStmt *)a, (const ShowEventStmt *)b);
+            break;
         case T_IndexHintDefinition:
             retval = _equalIndexHintDefinition((IndexHintDefinition *)a, (IndexHintDefinition *)b);
             break;