Fix #2012 Call parent constructor in listeners

Author: AkenRoberts

CHANGELOG.md

@@ -19,6 +19,10 @@ a release.
 ---
 
 ## [Unreleased]
+### Global / Shared
+#### Fixed
+- Add `parent::__construct()` calls to Listeners w/ custom constructors (#2012)
+
 ### Loggable
 #### Fixed
 - Added missing string casting of `objectId` in `LogEntryRepository::revert()` method (#2009)

lib/Gedmo/References/ReferencesListener.php

@@ -21,6 +21,8 @@ class ReferencesListener extends MappedEventSubscriber
 
     public function __construct(array $managers = array())
     {
+        parent::__construct();
+
         $this->managers = $managers;
     }
 

lib/Gedmo/Uploadable/UploadableListener.php

@@ -77,6 +77,8 @@ class UploadableListener extends MappedEventSubscriber
 
     public function __construct(MimeTypeGuesserInterface $mimeTypeGuesser = null)
     {
+        parent::__construct();
+
         $this->mimeTypeGuesser = $mimeTypeGuesser ? $mimeTypeGuesser : new MimeTypeGuesser();
     }