[Tagging] Source tag - deprecated for use on objects?

[dies38061]

I have been told ( on the talk-US email list ) that use of {{key|source}} on objects has been deprecated for years and that such information is only of historical interest and its use should be restricted to changesets.  This is not reflected in anything I can find on the wiki, and I've done an incomplete search of the subject fields on this forum to see if this has been discussed.  Could you please clarify this for me?  Should I a) not be adding {{key|source}} to objects and b) should I be adding content in such a way that a single source tag on the changeset is valid for all content in that changeset (this has major implications for my editing behavior).  Thanks. --ceyockey

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