diff -ur og/plugins/entityreference/behavior/OgBehaviorHandler.class.php og_new/plugins/entityreference/behavior/OgBehaviorHandler.class.php
--- og/plugins/entityreference/behavior/OgBehaviorHandler.class.php	2014-03-09 19:11:53.000000000 +1100
+++ og_new/plugins/entityreference/behavior/OgBehaviorHandler.class.php	2014-03-13 16:43:39.934322807 +1100
@@ -292,6 +292,6 @@
       og_field_widget_register_errors($field_name, $new_errors);
     }
 
-    $errors = array();
+    unset($errors[$field_name]);
   }
 }