Index: branches/RC/core/kernel/utility/formatters/options_formatter.php
===================================================================
diff -u -r8929 -r9334
--- branches/RC/core/kernel/utility/formatters/options_formatter.php	(.../options_formatter.php)	(revision 8929)
+++ branches/RC/core/kernel/utility/formatters/options_formatter.php	(.../options_formatter.php)	(revision 9334)
@@ -10,6 +10,7 @@
 
 		$label = getArrayValue($options['options'], $value);
 		if ($label !== false) {
+			// option_id found in options array
 			if (getArrayValue($options, 'use_phrases')) {
 				return $this->Application->Phrase($label);
 			}
@@ -18,7 +19,8 @@
 			}
 		}
 		else {
-			return $value;
+			// option_id not found
+			return $value == 0 ? '' : $value;
 		}
 	}