Change @role in att.naming to permit "one or more values" rather than just "one value". Per thread on TEI-L with subject "Limitation on @role in att.naming" (11-12 Feb. 2014)
i support this. I can't see any reason at all not to have multiple values for @role here, as it is allowed for other uses of @role.
Assigning to myself to triage and report to council with a proposal.
Council discussion 2014-07-01: make this green and implement it.