%TOPIC% in case there is no include.
If a topic is used in a chain of INCLUDEs, INCLUDINGTOPIC is set to the topic directly INCLUDing this one, NOT the topic that has been requested by the user (which is given by BASETOPIC)
    Be careful of the subtle difference between
 Be careful of the subtle difference between INCLUDINGTOPIC and BASETOPIC. You probably should be using BASETOPIC  Copyright © by the contributing authors. All material on this site is the property of the contributing authors.
Copyright © by the contributing authors. All material on this site is the property of the contributing authors.