Sun, 03 Jan 2010 23:03:04 +0100 wenzelm recovered explicit Changed.id (copy of future document) -- avoids premature joining of result;
Sun, 03 Jan 2010 20:50:07 +0100 wenzelm more explicit treatment of command/document state;
Sun, 03 Jan 2010 19:53:58 +0100 wenzelm removed unused document_change bus;
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