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From: Neil Crellin <neilc@wallaby.cc>
Newsgroups: gmane.emacs.gnus.general
Subject: how do I clear out this?
Date: Fri, 01 Feb 2002 21:51:51 -0800
Organization: Wallaby Refuge
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My server buffer looks like this:

     {nnml:sent} (opened)
...
     {nnml:sent} (opened)
...
     {nnml:sent+nnml+sent:news.current} (opened)
     {nnml:sent+nnml+sent:mail.current} (opened)
...

It seems mostly harmless, but it's annoyed me for ages.
How can I clear it out back to just the single nnml:sent?

-Neil