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bug#11715: 24.1; Error in post-command-hook: wrong-number-of-arguments -

From: Drew Adams
Subject: bug#11715: 24.1; Error in post-command-hook: wrong-number-of-arguments - read-file-internal
Date: Fri, 15 Jun 2012 08:36:45 -0700

Not in emacs -Q, and I do not know how to reproduce it.
I get this sometimes:
Error in post-command-hook (#[nil \300\301!\207 [run-hooks
icomplete-post-command-hook] 2]): (wrong-number-of-arguments (lambda
nil (let ((minibuffer-completing-file-name t))
(completion-table-in-turn (quote completion--embedded-envvar-table)
(quote completion--file-name-table)))) 3)
That looks like someone (Icicles? Icomplete?) put this function on
(lambda () (let ((minibuffer-completing-file-name t))
(completion-table-in-turn (quote completion--embedded-envvar-table)
(quote completion--file-name-table))))
FWIW, I'm not aware of Icicles doing anything like that - I don't see
any code that is similar.  But I cannot say that it doesn't do something
that leads to that.
The `let' body in that sexp is just the definition of
(defalias 'read-file-name-internal
  (completion-table-in-turn 'completion--embedded-envvar-table
  "Internal subroutine for `read-file-name'.  Do not call this.")
This is that definition (symbol-function), un-byte-compiled:
 ((tables completion--embedded-envvar-table completion--file-name-table)
 (string pred action)
    (complete-with-action action table string pred))
Hoping some of this info might ring a bell for Stefan.
It means little to me.
(I also do not recall whether this occurred in the release itself
or in a (post|parallel-to)-release development build.  If I had to
guess I'd say it occurs in both.)
In GNU Emacs 24.1.1 (i386-mingw-nt5.1.2600)
 of 2012-06-10 on MARVIN
Windowing system distributor `Microsoft Corp.', version 5.1.2600
Configured using:
 `configure --with-gcc (4.6) --cflags

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