Subject: bug#49866: 28.0.50; gnus-summary-exit from the transient search buffer giving error

From: Lars Ingebrigtsen <[email-masked]>
Date: Fri, 06 Aug 2021 12:44:53 +0200

"Basil L. Contovounesios" <[email-masked]> writes:

> The problem isn't nil, it's '(1 2 3). 

The original backtrace was

Debugger entered--Lisp error: (cl-no-applicable-method map-into nil list)
  signal(cl-no-applicable-method (map-into nil list))
[...]
  map-into(nil list)
  map-merge(list nil nil)

though.  So Eric's patch is the right thing for the '(1 2 3) nil case?
But the map-merge mystery still remains.

-- 
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   bloggy blog: http://lars.ingebrigtsen.no