[Pharo-project] Small Spec / Announcement question.

Is there a reason for the use or lack of weak in whenChanged for NewValueHolder ? NewValueHolder>>whenChanged:do: announcer weak on:do: NewValueHolder>>whenChangedSend:to: announcer on:send:to: Thanks, Thierry -- Thierry Goubier CEA list Laboratoire des Fondations des Systèmes Temps Réel Embarqués 91191 Gif sur Yvette Cedex France Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95