Error while uploading new images

I noticed a conflict where uploading new images via NG Gallery was triggering an error message. I’m on NG Galleries v2.3.

My Apache error log was showing this error:
PHP Fatal error: Call to undefined method stdClass::id() in /httpdocs/wp-content/plugins/nextgen-gallery-voting/ngg-voting.php on line 1584, referer: /wp-admin/admin.php?page=ngg_addgallery

The solution was to patch ngg-voting.php like this:

Index: wp-content/plugins/nextgen-gallery-voting/ngg-voting.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- wp-content/plugins/nextgen-gallery-voting/ngg-voting.php	(revision 31b8a5811e09b558932b2a0def0480453a8a92b4)
+++ wp-content/plugins/nextgen-gallery-voting/ngg-voting.php	(revision 6a35ca82d9c1389c29a04bb39128c31704130338)
@@ -1581,23 +1581,29 @@
 		 */
 		function addNewImage($image) {
 			if(defined('NEXTGEN_GALLERY_PLUGIN_VERSION') && NEXTGEN_GALLERY_PLUGIN_VERSION >= 2 && is_object($image)) {
-				if($image->id() && $image->__get('galleryid')) {
+			  if('stdClass' === get_class($image)) {
+          $pid = $image->pid;
+          $gallery_id = $image->galleryid;
+        } elseif($image->id() && $image->__get('galleryid')) {
 					$pid = $image->id();
-					$post = array();
-					$post['nggv_image'] = array();
-					$post['nggv_image'][$pid] = array();
-					
-					$criteria = $this->getImageCriteria();
-					foreach ((array)$criteria as $key=>$val) {
-						$post['nggv_image'][$pid][$val->id] = array();
-						$post['nggv_image'][$pid][$val->id]['enable'] = get_option('nggv_image_enable');
-						$post['nggv_image'][$pid][$val->id]['force_login'] = get_option('nggv_image_force_login');
-						$post['nggv_image'][$pid][$val->id]['force_once'] = get_option('nggv_image_force_once');
-						$post['nggv_image'][$pid][$val->id]['user_results'] = get_option('nggv_image_user_results');
-						$post['nggv_image'][$pid][$val->id]['voting_type'] = get_option('nggv_image_voting_type');
-					}
-					$this->onGalleryUpdate($image->__get('galleryid'), $post);
-				}
+					$gallery_id = $image->__get('galleryid');
+				}
+				if(isset($pid) && isset($gallery_id)) {
+          $post = array();
+          $post['nggv_image'] = array();
+          $post['nggv_image'][$pid] = array();
+
+          $criteria = $this->getImageCriteria();
+          foreach ((array)$criteria as $key=>$val) {
+            $post['nggv_image'][$pid][$val->id] = array();
+            $post['nggv_image'][$pid][$val->id]['enable'] = get_option('nggv_image_enable');
+            $post['nggv_image'][$pid][$val->id]['force_login'] = get_option('nggv_image_force_login');
+            $post['nggv_image'][$pid][$val->id]['force_once'] = get_option('nggv_image_force_once');
+            $post['nggv_image'][$pid][$val->id]['user_results'] = get_option('nggv_image_user_results');
+            $post['nggv_image'][$pid][$val->id]['voting_type'] = get_option('nggv_image_voting_type');
+          }
+          $this->onGalleryUpdate($gallery_id, $post);
+        }
 			}else{
 				if($image['id']) {
 					$post = array();