bug#36903: 27.0.50; gnus registry vs. debbugs

[Eric Abrahamsen]

Michael Heerdegen <michael_heerdegen@web.de> writes:

> Hi,
>
> opening articles in the groups generated by debbugs-gnu-search or
> debbugs-gnu-bugs fails for me, because I have set up Gnus to use the
> registry:
>
> Debugger entered--Lisp error: (cl-no-applicable-method registry-lookup
> nil ("fake+none+nndoc+ephemeral:bug#19892+1"))
>   signal(cl-no-applicable-method (registry-lookup nil 
> ("fake+none+nndoc+ephemeral:bug#19892+1")))
>   cl-no-applicable-method(#s(cl--generic :name registry-lookup
> :dispatches ((1 #s(cl--generic-generalizer :name
> cl--generic-t-generalizer :priority 0 :tagcode-function
> #f(compiled-function (name &rest _) #<bytecode 0x1ffea8c93a83>)
> :specializers-function #f(compiled-function (tag &rest _) #<bytecode
> 0x1ffea8c93a6b>))) (0 #s(cl--generic-generalizer :name
> eieio--generic-generalizer :priority 50 :tagcode-function
> cl--generic-struct-tag :specializers-function #f(compiled-function
> (tag &rest _) #<bytecode 0x15640b15a86d>)) #s(cl--generic-generalizer
> :name cl--generic-t-generalizer :priority 0 :tagcode-function
> #f(compiled-function (name &rest _) #<bytecode 0x1ffea8c93a83>)
> :specializers-function #f(compiled-function (tag &rest _) #<bytecode
> 0x1ffea8c93a6b>)))) :method-table (#s(cl--generic-method :specializers
> (registry-db t) :qualifiers nil :uses-cnm nil :function
> #f(compiled-function (db keys) #<bytecode 0x15640bae7b19>))) :options
> nil) nil ("fake+none+nndoc+ephemeral:bug#19892+1"))
>   apply(cl-no-applicable-method #s(cl--generic :name registry-lookup
> :dispatches ((1 #s(cl--generic-generalizer :name
> cl--generic-t-generalizer :priority 0 :tagcode-function
> #f(compiled-function (name &rest _) #<bytecode 0x1ffea8c93a83>)
> :specializers-function #f(compiled-function (tag &rest _) #<bytecode
> 0x1ffea8c93a6b>))) (0 #s(cl--generic-generalizer :name
> eieio--generic-generalizer :priority 50 :tagcode-function
> cl--generic-struct-tag :specializers-function #f(compiled-function
> (tag &rest _) #<bytecode 0x15640b15a86d>)) #s(cl--generic-generalizer
> :name cl--generic-t-generalizer :priority 0 :tagcode-function
> #f(compiled-function (name &rest _) #<bytecode 0x1ffea8c93a83>)
> :specializers-function #f(compiled-function (tag &rest _) #<bytecode
> 0x1ffea8c93a6b>)))) :method-table (#s(cl--generic-method :specializers
> (registry-db t) :qualifiers nil :uses-cnm nil :function
> #f(compiled-function (db keys) #<bytecode 0x15640bae7b19>))) :options
> nil) (nil ("fake+none+nndoc+ephemeral:bug#19892+1")))
>   #f(compiled-function (&rest args) #<bytecode 0x15640d67eedd>)(nil
> ("fake+none+nndoc+ephemeral:bug#19892+1"))
>   apply(#f(compiled-function (&rest args) #<bytecode 0x15640d67eedd>)
> nil ("fake+none+nndoc+ephemeral:bug#19892+1"))
>   registry-lookup(nil ("fake+none+nndoc+ephemeral:bug#19892+1"))
>   gnus-registry-get-or-make-entry("fake+none+nndoc+ephemeral:bug#19892+1")
>   gnus-registry-get-id-key("fake+none+nndoc+ephemeral:bug#19892+1" group)
>   gnus-registry-register-message-ids()
>   run-hooks(gnus-summary-prepare-hook)
>   apply(run-hooks gnus-summary-prepare-hook)
>   gnus-run-hooks(gnus-summary-prepare-hook)
>   gnus-summary-prepare()
>   gnus-summary-read-group-1("nndoc+ephemeral:bug#19892" t t nil nil nil)
>   gnus-summary-read-group("nndoc+ephemeral:bug#19892" t t nil nil nil nil)
>   gnus-group-read-group(t t "nndoc+ephemeral:bug#19892" nil)
>   gnus-group-read-ephemeral-group("nndoc+ephemeral:bug#19892" (nndoc
> "/tmp/gnus-temp-group-RfE2Ck" (nndoc-article-type mbox)) nil (#<buffer
> *Bugs*> . #<window-configuration>))
>   gnus-read-ephemeral-bug-group((19892)
> "https://debbugs.gnu.org/cgi/bugreport.cgi?bug=%s;m..."; (#<buffer
> *Bugs*> . #<window-configuration>))
>   gnus-read-ephemeral-emacs-bug-group((19892) (#<buffer *Bugs*> . 
> #<window-configuration>))
>   debbugs-read-emacs-bug-with-gnus(19892 ((cache_time .
> 1564812360.0822985) (unarchived) (blockedby) (forwarded) (package
> "emacs") (location . "db-h") (originator . "michael_heerdegen@web.de")
> (subject . "25.0.50; hideshow: hs-hide-all-non-comment-functio...")
> (severity . "normal") (fixed (item (key . 27.1) (value)))
> (found_versions "25.0.50") (msgid . "<87r3tonon8.fsf@web.de>")
> (mergedwith) (fixed_versions "27.1") (last_modified . 1564773722)
> (owner) (found (item (key . "25.0.50") (value))) (fixed_date) (id .
> 19892) (summary) (affects) (keywords "fixed") (source . "unknown")
> (pending . "done") (found_date) (archived) (done . "Lars Ingebrigtsen
> <larsi@gnus.org>") (tags "fixed") (date . 1424213161) (bug_num .
> 19892) (blocks) (log_modified . 1564773722)) nil)
>   debbugs-gnu-select-report()
>
> AFAIU the problem is that gnus-registry-db is bound to nil *Bugs* 

Do you know why/where this is happening?