Your spec is inconsistant.

I can see one rule that might explain that process, but better you explain when to discard or retain an earlier (near)duplicate than have me (us) guess.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
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In reply to Re: Parsing Pattern Question by BrowserUk
in thread Parsing Pattern Question by dlcasey

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