Wed, 11 Apr 2012 13:37:46 +0200 wenzelm tuned message;
Wed, 11 Apr 2012 12:15:56 +0200 wenzelm always signal after cancel_group: passive tasks may have become active;
Wed, 11 Apr 2012 11:44:21 +0200 wenzelm just one dedicated execution per document version -- NB: non-monotonicity of cancel always requires fresh update;
Tue, 10 Apr 2012 23:05:24 +0200 wenzelm merged
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