Dealing with old external identifiers

[WilliamWDTK]

For example, old URNs where a maintained school turns into an academy of the same name. Both from a tagging, search and display perspective (multiple links with the same name looks odd, and isn't easily understandable).

This situation might occur anywhere we are linking to some external source, although often we might want to create new bodies anyway.

We could establish a policy of a 1:1 relation between WDTK bodies and records in selected external databases deemed authoritative.