BPMN21 — Inclusive gateway synchronization behavior mentioned but not described

On page 291 in section 10.6.3 the below text states a certain synchronization behavior,
but the mentioned page nor somewhere else is the behavior described. Please provide the expected behavior.
Many thanks in advance.

"begin quote

A converging Inclusive Gateway is used to merge a combination of alternative and parallel paths. A control flow token
arriving at an Inclusive Gateway MAY be synchronized with some other tokens that arrive later at this Gateway. The
precise synchronization behavior of the Inclusive Gateway can be found on page 291.

endquote"