[fix](Nereids) nested window function with order by raise exception

fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/ExtractAndNormalizeWindowExpression.java

@@ -62,7 +62,7 @@ private Plan normalize(LogicalProject<Plan> project) {
                     if (output instanceof WindowExpression) {
                         WindowExpression windowExpression = (WindowExpression) output;
                         Expression expression = ((WindowExpression) output).getFunction();
-                        if (expression.containsType(OrderExpression.class)) {
+                        if (expression.children().stream().anyMatch(OrderExpression.class::isInstance)) {
                             throw new AnalysisException("order by is not supported in " + expression);
                         }
                         if (expression instanceof NullableAggregateFunction) {

regression-test/suites/nereids_rules_p0/normalize_window/normalize_window_nullable_agg_test.groovy

@@ -73,6 +73,16 @@ suite("normalize_window_nullable_agg") {
         exception "order by is not supported"
     }
 
+    test {
+        sql "select group_concat(cast(sum(xwhat) over(partition by xwho order by xwhen) as varchar) order by xwhat) over(partition by xwhen) from windowfunnel_test_normalize_window;"
+        exception "order by is not supported"
+    }
+
+    // test only refuse order by in function's direct children
+    sql """
+        select sum(sum(xwhat) over(partition by xwho order by xwhen)) over(partition by xwho) from windowfunnel_test_normalize_window
+    """
+
     sql "set enable_fold_constant_by_be = 1;"
     sql "drop table if exists fold_window1"
     sql """create table fold_window1 (