Fix regression introduce when not checking for x-ms-examples (#3748)

.gitignore

@@ -160,7 +160,7 @@ Backup*/
 UpgradeLog*.XML
 
 # NuGet
-packages
+# packages
 
 # Mac OS #
 .DS_Store
@@ -292,4 +292,5 @@ package-deps.json
 common/config/rush/shrinkwrap.yaml
 
 # Code generation output for regression tests
-core/test/regression
+core/test/regression
+

packages/extensions/core/lib/pipeline/plugins/merger.ts

@@ -281,7 +281,7 @@ export class MultiAPIMerger extends Transformer<any, oai.Model> {
           if (newRef) {
             if (value.__rewrite__) {
               // special case where the value was a proxy object
-              value.__rewrite__("$ref", key, newRef);
+              value.__rewrite__("$ref", newRef);
             } else {
               // most of the time it's not.
               value.$ref = newRef;