Thorsten Jolitz [2013-09-14 15:48:51 +02:00] wrote:

> | (headline (:CATEGORY #1=\"tmp\" ...))

> | (headline (:CATEGORY #1# ...))

> This seems to be a case where circular lists are applied to strings -
> should they rather be called circular sequences?

There is no circular structure here. #1# points to the object defined
with #1=. Those are just references to the same object.