BeforeOrEqual null compare

This validator fails when comparing to another field that is null

Author: nockhigan

models/validators/BeforeOrEqualValidator.cfc

@@ -58,6 +58,11 @@ component
 				"get#arguments.validationData#"
 			);
 		}
+		
+		// return true if no value to compare against
+		if ( isNull( compareValue ) || isNullOrEmpty( compareValue ) ) {
+			return true;
+		}
 
 		/**
 		 * -1 if date1 is before than date2