@@ -543,10 +543,13 @@
 
 - (bool)isEqual: (id)object
 {
 	OFData *otherData;
 	unsigned char diff;
+
+	if (object == self)
+		return true;
 
 	if (![object isKindOfClass: [OFData class]])
 		return false;
 
 	otherData = object;