bug copying ham from spam folder

[Jake Colman <colman@ppllc.com>]

Step by step, little by little...

I've figured out that ham in a spam group, or spam in a ham, cannot be sent
directly for training but must first be copied to an appropriate ham or spam
group where its exit processor will train it.  Great!

I marked my ham message in my spam group and exited.  I got the following
error: "nnnil does not support article copying".

I use nnnil as my gnus-select-method, as recommended for situations where
there is no news server and just email.  nnimap is my
gnus-secondary-select-methods.  I guess that I actually configure things
correctly and wanted to copy the message from my nnimap-based spam group to
my nnimap-based ham group but triggered this error instead.

BTW, gnus does support moving message between nnimap folders since I do it
all the time.

Here is the backtrace:

Signaling: (error "nnnil does not support article copying")
  signal(error ("nnnil does not support article copying"))
  cerror("%s does not support article copying" nnnil)
  apply(cerror "%s does not support article copying" nnnil)
  error("%s does not support article copying" nnnil)
  gnus-summary-move-article(nil "INBOX/Misc")
  spam-ham-copy-or-move-routine(nil ("INBOX/Misc"))
  spam-ham-move-routine("INBOX/Misc")
  spam-summary-prepare-exit()
  run-hooks(spam-summary-prepare-exit)
  apply(run-hooks spam-summary-prepare-exit)
  gnus-run-hooks(gnus-summary-prepare-exit-hook)
  gnus-summary-exit()
  gnus-summary-catchup-and-exit(nil)
  call-interactively(gnus-summary-catchup-and-exit)

-- 
Jake Colman                     

Principia Partners LLC                    Phone: (201) 209-2467
Harborside Financial Center                 Fax: (201) 946-0320
902 Plaza Two                          E-mail: colman@ppllc.com
Jersey City, NJ 07311                 www.principiapartners.com