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From: Karl Kleinpaste <karl@charcoal.com>
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Subject: Re: `^ ... RET' server mode adds groups to *Group*?
Date: 29 Jan 2001 08:50:04 -0500
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In-Reply-To: <m3r91mby01.fsf@reader.newsguy.com> (Harry Putnam's message of "28 Jan 2001 23:47:42 -0800")
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Harry Putnam <reader@newsguy.com> writes:
> Still having an older version of 5.8.8 available I see no such delay
> but an immediate listing for...I guess what Karl calls:
> "transient or ephemeral access"

Found it.  It's deliberate.  From the ChangeLog:

2000-10-30 00:49:33  ShengHuo ZHU  <zsh@cs.rochester.edu>

	* gnus-srvr.el (gnus-server-browse-in-group-buffer): New variable.
	(gnus-server-read-server-in-server-buffer): New function.
	(gnus-browse-foreign-server): Browse in group buffer.

Setting to nil gets the old behavior.

I think having this variable defaulting to t is suboptimal.  And it's
much, much slower (due to having to go through the gyrations of adding
groups to *Group*) than browsing a server in its own server buffer.