- * Because of this, if your source or destination property actually starts with
- * a @ you need to double those starting characters up. This means that if a
- * destination property happens to start with a @ and you want to refer it,
- * you'll need to start with three @ characters -- one to indicate the
- * destination and two for escaping the real @.
+ * Because of this, if the source or destination property actually starts with a
+ * @, that character must be escaped with @@.
+ * The referenced property becomes, for example, @@@foo.