fix: routing issue

Author: MaggieKimani1

src/Microsoft.OpenApi/Models/OpenApiMediaType.cs

@@ -99,7 +99,7 @@ private void SerializeInternal(IOpenApiWriter writer, OpenApiSpecVersion version
             // examples
             if (Examples != null && Examples.Any())
             {
-                SerializeExamples(writer, Examples);
+                SerializeExamples(writer, Examples, callback);
             }
 
             // encoding
@@ -119,7 +119,7 @@ public virtual void SerializeAsV2(IOpenApiWriter writer)
             // Media type does not exist in V2.
         }
 
-        private static void SerializeExamples(IOpenApiWriter writer, Dictionary<string, IOpenApiExample> examples)
+        private static void SerializeExamples(IOpenApiWriter writer, Dictionary<string, IOpenApiExample> examples, Action<IOpenApiWriter, IOpenApiSerializable> callback)
         {
             /* Special case for writing out empty arrays as valid response examples
             * Check if there is any example with an empty array as its value and set the flag `hasEmptyArray` to true
@@ -143,7 +143,7 @@ private static void SerializeExamples(IOpenApiWriter writer, Dictionary<string,
             }
             else
             {
-                writer.WriteOptionalMap(OpenApiConstants.Examples, examples, (w, e) => e.SerializeAsV3(w));
+                writer.WriteOptionalMap(OpenApiConstants.Examples, examples, callback);
             }
         }
     }

src/Microsoft.OpenApi/Models/OpenApiSchema.cs

@@ -490,7 +490,7 @@ private void SerializeInternal(IOpenApiWriter writer, OpenApiSpecVersion version
             writer.WriteProperty(OpenApiConstants.WriteOnly, WriteOnly, false);
 
             // xml
-            writer.WriteOptionalObject(OpenApiConstants.Xml, Xml, (w, s) => s.SerializeAsV2(w));
+            writer.WriteOptionalObject(OpenApiConstants.Xml, Xml, callback);
 
             // externalDocs
             writer.WriteOptionalObject(OpenApiConstants.ExternalDocs, ExternalDocs, callback);