restore default display name extraction

lib/IdPAccountManager/SAMLMetadata.pm

@@ -172,6 +172,9 @@ sub parse {
           if ($data->{domain});
         $data->{domain} = $domains;
 
+        # compute default display name for template sorting
+        $data->{default_display_name} = $data->{display_name}->{en};
+
         push @array, $data;
     }