On 17 December 2020 20:30, Eric Abrahamsen <eric@ericabrahamsen.net> wrote:

> Actually, I have a suspicion of what's going on here: the nils mean that
> nnmaildir code is unable to convert the maildir file names to article
> numbers, and I think it's unable to do that because it is getting
> confused about which nnmaildir backend is "current". Would you eval the
> following function, and let me know if it lets you search back and forth
> between backends without error?
>
> And just to really push our luck, would you try marking groups from both
> backends and searching them at the same time?

After evaluting the function searching works when switching groups, but
it doesn't work when I mark multiple groups and search across them. I
get the same error where it's trying to compare two nils.

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
  <(nil nil)
  nnselect-compress-artlist([["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:home.yoctocell..local.share.ma..." nil 100] ["nnmaildir+yoctocell:Inbox" 48 100] ...])
  nnselect-request-group("nnselect-86o8ir1q9t.fsf" "nnselect-ephemeral" t ("nnselect:nnselect-86o8ir1q9t.fsf" 3 nil nil (nnselect "nnselect-ephemeral" (nnselect-address "nnselect")) ((quit-config #<buffer *Group*> . message) (nnselect-specs (nnselect-function . gnus-search-run-query) (nnselect-args (search-query-spec (query . "test") (raw)) (search-group-spec ("nnmaildir:yoctocell" "nnmaildir+yoctocell:Inbox") ("nnmaildir:public" "nnmaildir+public:Junk")))) (nnselect-artlist))))
  gnus-request-group("nnselect:nnselect-86o8ir1q9t.fsf" t nil ("nnselect:nnselect-86o8ir1q9t.fsf" 3 nil nil (nnselect "nnselect-ephemeral" (nnselect-address "nnselect")) ((quit-config #<buffer *Group*> . message) (nnselect-specs (nnselect-function . gnus-search-run-query) (nnselect-args (search-query-spec (query . "test") (raw)) (search-group-spec ("nnmaildir:yoctocell" "nnmaildir+yoctocell:Inbox") ("nnmaildir:public" "nnmaildir+public:Junk")))) (nnselect-artlist))))
  gnus-select-newsgroup("nnselect:nnselect-86o8ir1q9t.fsf" t nil)
  gnus-summary-read-group-1("nnselect:nnselect-86o8ir1q9t.fsf" t t nil nil nil)
  gnus-summary-read-group("nnselect:nnselect-86o8ir1q9t.fsf" t t nil nil nil nil)
  gnus-group-read-group(t t "nnselect:nnselect-86o8ir1q9t.fsf" nil)
  gnus-group-read-ephemeral-group("nnselect-86o8ir1q9t.fsf" (nnselect "nnselect") nil (#<buffer *Group*> . message) nil nil ((nnselect-specs (nnselect-function . gnus-search-run-query) (nnselect-args (search-query-spec (query . "test") (raw)) (search-group-spec ("nnmaildir:yoctocell" "nnmaildir+yoctocell:Inbox") ("nnmaildir:public" "nnmaildir+public:Junk")))) (nnselect-artlist)))
  gnus-group-read-ephemeral-search-group(nil)
  funcall-interactively(gnus-group-read-ephemeral-search-group nil)
  command-execute(gnus-group-read-ephemeral-search-group)

-- 
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