bug#26862: Quit Gnus prompts about unsent messages, but messages can't be saved as drafts

[Eric Abrahamsen]

What I mean is:

1. With unfinished/unsent messages open, you quit Gnus.
2. Gnus says you have unsent messages, quit anyway?
3. You say no.
4. You go to the unsaved message, and run "C-c C-d" to save as draft.
5. Gnus says "selecting deleted buffer"
6. You can't save the draft.

I'll probably get around to figuring this out, but I'm hanging it up
here in the meantime.

Gnus v5.13
GNU Emacs 26.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.12)
 of 2017-05-09
200 news.gmane.org InterNetNews NNRP server INN 2.5.4 ready (posting ok)
100 Legal commands
  ARTICLE [message-ID|number]
  AUTHINFO USER name|PASS password|SASL mechanism [initial-response]|GENERIC 
program [argument ...]
  BODY [message-ID|number]
  CAPABILITIES [keyword]
  DATE
  GROUP newsgroup
  HDR header [message-ID|range]
  HEAD [message-ID|number]
  HELP
  IHAVE message-ID
  LAST
  LIST [ACTIVE [wildmat]|ACTIVE.TIMES [wildmat]|COUNTS 
[wildmat]|DISTRIB.PATS|DISTRIBUTIONS|HEADERS 
[MSGID|RANGE]|MODERATORS|MOTD|NEWSGROUPS [wildmat]|OVERVIEW.FMT|SUBSCRIPTIONS 
[wildmat]]
  LISTGROUP [newsgroup [range]]
  MODE READER
  NEWGROUPS [yy]yymmdd hhmmss [GMT]
  NEWNEWS wildmat [yy]yymmdd hhmmss [GMT]
  NEXT
  OVER [range]
  POST
  QUIT
  STARTTLS
  STAT [message-ID|number]
  XGTITLE [wildmat]
  XHDR header [message-ID|range]
  XOVER [range]
  XPAT header message-ID|range pattern [pattern ...]
Report problems to <usenet@blaine.gmane.org>.
.
382 Begin TLS negotiation now
100 Legal commands
  ARTICLE [message-ID|number]
  AUTHINFO USER name|PASS password|SASL mechanism [initial-response]|GENERIC 
program [argument ...]
  BODY [message-ID|number]
  CAPABILITIES [keyword]
  DATE
  GROUP newsgroup
  HDR header [message-ID|range]
  HEAD [message-ID|number]
  HELP
  IHAVE message-ID
  LAST
  LIST [ACTIVE [wildmat]|ACTIVE.TIMES [wildmat]|COUNTS 
[wildmat]|DISTRIB.PATS|DISTRIBUTIONS|HEADERS 
[MSGID|RANGE]|MODERATORS|MOTD|NEWSGROUPS [wildmat]|OVERVIEW.FMT|SUBSCRIPTIONS 
[wildmat]]
  LISTGROUP [newsgroup [range]]
  MODE READER
  NEWGROUPS [yy]yymmdd hhmmss [GMT]
  NEWNEWS wildmat [yy]yymmdd hhmmss [GMT]
  NEXT
  OVER [range]
  POST
  QUIT
  STARTTLS
  STAT [message-ID|number]
  XGTITLE [wildmat]
  XHDR header [message-ID|range]
  XOVER [range]
  XPAT header message-ID|range pattern [pattern ...]
Report problems to <usenet@blaine.gmane.org>.
.