Proposal 33 is ready for TC consideration for promotion to stage 3:
PDF is attached.
DITA source (SVN): https://tools.oasis-open.org/version-control/browse/wsvn/dita/trunk/DITA-2.0/stage-2/Issue33-DeprecateOrRemoveCopyTo.dita
Tl;dr: Remove @copy-to, don't replace it with anything. Remove language from @chunk attribute related to implications of use of @copy-to on topic head topicrefs.
The consensus of myself, Robert, and Chris was that everything having to do with @copy-to and the larger issues around the construction of "anchors" in deliverables is entirely processor specific and therefore not something we can or should be trying to standardize or even define conventions for in the DITA specification.
Cheers,
Eliot
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Eliot Kimber
http://contrext.com