nnimap-request-expire-articles fails with negative article numbers

nnimap-request-expire-articles fails with negative article numbers

[Reiner Steib]

Hi,

I did a `j <some-mid> RET' in one of my nnimap groups.  When leaving
the group (with expiry), I get the following backtrace.  The server
(Cyrus IMAP4 v2.1.16) doesn't like the negative article number.
Probably nnimap (maybe other back end too?) should drop negative
numbers from the list.

,----
| Debugger entered--Lisp error: (error "Internal error, tag 571 status
|   BAD code nil text Invalid Search criteria")
|   signal(error ("Internal error, tag 571 status BAD code nil text
|   Invalid Search criteria"))
|   error("Internal error, tag %s status %s code %s text %s" 571 BAD nil
|   "Invalid Search criteria") 
|   imap-parse-response()
|   imap-arrival-filter(#<process imap> "571 BAD Invalid Search criteria^M\n")
|   accept-process-output(#<process imap> 0 100)
|   imap-wait-for-tag(571 nil)
|   imap-send-command-wait("UID SEARCH UID -1,53702:53851 NOT SINCE 1-Jun-2004")
|   imap-search("UID -1,53702:53851 NOT SINCE 1-Jun-2004")
|   nnimap-request-expire-articles((-1 53702 53703 [...] 53750 ...)
|   "Spam/spamblock" "urz" nil)
|   gnus-request-expire-articles((-1 53702 53703 [...] ...)
|   "nnimap+urz:Spam/spamblock")
|   gnus-summary-expire-articles()
|   run-hooks(gnus-summary-prepare-exit-hook)
|   apply(run-hooks gnus-summary-prepare-exit-hook)
|   gnus-run-hooks(gnus-summary-prepare-exit-hook)
|   gnus-summary-exit()
|   call-interactively(gnus-summary-exit)
`----

(CR replaced by ^M)

Bye, Reiner.
-- 
       ,,,
      (o o)
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