On 23/07/2010 08:52, Ed Avis wrote:
Fair point. In that case, to be scrupulous, you would need to add individual
source tags to each object as you change it.  But even then, the object data is
not sufficient to know where it has come from: you must check the change history
and see at which point the various sources were added, and what other changes
were made at the same time.

... or "source:blah" to indicate where the "blah" tag came from at the time that the "blah" tag was added or changed.



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