Tue, 18 Sep 2012 21:39:12 +0900 FUJIWARA Katsunori bookmarks: use "changectx.descendant()" for efficient descendant examination
Tue, 18 Sep 2012 21:39:12 +0900 FUJIWARA Katsunori context: add "descendant()" to changectx for efficient descendant examination
Tue, 18 Sep 2012 21:39:12 +0900 FUJIWARA Katsunori bookmarks: avoid redundant creation/assignment of "validdests" in "validdest()"
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