Fix this issue in more proper way

Author: SOHELAHMED7

src/SpecBaseObject.php

@@ -210,10 +210,6 @@ public function getSerializableData()
                     // case 2: Attribute type is an object (specified in attributes() by an array which specifies two items (key and value type)
                     $toObject = true;
                 }
-                if ($k === 'parameters') {
-                    ksort($data[$k]);
-                    $toObject = false;
-                }
                 if ($toObject) {
                     $data[$k] = (object) $data[$k];
                 }

src/spec/PathItem.php

@@ -180,7 +180,7 @@ public function resolveReferences(ReferenceContext $context = null)
                     foreach ($this->$attribute as $k => $item) {
                         if ($item instanceof Reference) {
                             $referencedObject = $item->resolve();
-                            $this->$attribute = [$k => $referencedObject] + $this->$attribute;
+                            $this->$attribute = $this->$attribute + [$k => $referencedObject];
                             if (!$referencedObject instanceof Reference && $referencedObject !== null) {
                                 $referencedObject->resolveReferences();
                             }