[DTB] ACTION-682 completed

I edited the text of ISSUE-82 [1] to point out the issue with
non-disjoint value spaces.

[1] http://www.w3.org/2005/rules/wg/track/issues/81
-- 
Jos de Bruijn            debruijn@inf.unibz.it
+390471016224         http://www.debruijn.net/
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No one who cannot rejoice in the discovery of
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