bug#45872: 27.1; rcirc nick tracking

[Lars Ingebrigtsen <larsi@gnus.org>]

Ken Raeburn <raeburn@redhat.com> writes:

> 2022-03-16T08:24:29 !!!
> ":someuser|away!~someuser@some-internal-host.redhat.com NICK
> :someuser" (error Buffer name ‘someuser@some-irc-host.redhat.com’ is
> in use)
>
> I think this is coming from cases where I’ve been offline for a nick
> renaming, so when I come online, “someuser|away” is online but I have a
> buffer “someuser”. Perhaps the UNIQUE argument to rename-buffer should
> be set?

So the suggested change is:

diff --git a/lisp/net/rcirc.el b/lisp/net/rcirc.el
index 0d30b34922..815dfef50f 100644
--- a/lisp/net/rcirc.el
+++ b/lisp/net/rcirc.el
@@ -3298,7 +3298,7 @@ rcirc-handler-NICK
       (with-current-buffer chat-buffer
 	(rcirc-print process sender "NICK" old-nick new-nick)
 	(setq rcirc-target new-nick)
-	(rename-buffer (rcirc-generate-new-buffer-name process new-nick)))
+	(rename-buffer (rcirc-generate-new-buffer-name process new-nick) t))
       (setf rcirc-buffer-alist
             (cons (cons new-nick chat-buffer)
                   (delq (assoc-string old-nick rcirc-buffer-alist t)

Skimming the code, it seems like this should do the trick (but I haven't
tested it).  Ken, Philip, does this look OK to you?

-- 
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