Set decoration priority

Author: vincentchalamon

src/Bridge/Symfony/Bundle/Resources/config/swagger.xml

@@ -34,9 +34,9 @@
             <tag name="serializer.normalizer" priority="16" />
         </service>
 
-        <service id="api_platform.swagger.normalizer.api_gateway" class="ApiPlatform\Core\Swagger\Serializer\ApiGatewayNormalizer" public="false" decorates="api_platform.swagger.normalizer.documentation">
+        <service id="api_platform.swagger.normalizer.api_gateway" class="ApiPlatform\Core\Swagger\Serializer\ApiGatewayNormalizer" public="false" decorates="api_platform.swagger.normalizer.documentation" decoration-priority="-1">
             <argument type="service" id="api_platform.swagger.normalizer.api_gateway.inner" />
-            <tag name="serializer.normalizer" priority="-1" />
+            <tag name="serializer.normalizer" priority="17" />
         </service>
 
         <service id="api_platform.swagger.command.swagger_command" class="ApiPlatform\Core\Bridge\Symfony\Bundle\Command\SwaggerCommand">