Index: kernel/classes/datatypes/ezuser/ezusertype.php
===================================================================
--- kernel/classes/datatypes/ezuser/ezusertype.php	(revisión: 1554)
+++ kernel/classes/datatypes/ezuser/ezusertype.php	(copia de trabajo)
@@ -171,7 +171,7 @@
                 }
             }
         }
-        else if ( $contentObjectAttribute->validateIsRequired() )
+        else if ( $contentObjectAttribute->validateIsRequired() and $contentObjectAttribute->attribute( 'content_class_attribute_can_translate' ) )
         {
             $contentObjectAttribute->setValidationError( ezpI18n::tr( 'kernel/classes/datatypes', 'Input required.' ) );
             return eZInputValidator::STATE_INVALID;