bug#26394: 26.0.50; ediff file-local-copy: Wrong type argument: stringp, nil

bug#26394: 26.0.50; ediff file-local-copy: Wrong type argument: stringp, nil

[Mutiny]

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starting Emacs (even with -Q). Loading 2 buffers, running ediff alwaysresults infile-local-copy: Wrong type argument: stringp, nilIn GNU Emacs 26.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.22.10) of 2017-04-07 built on XYZRepository revision: 451a0c8b6955006f5aaa8b660a9e0b935b4fa095Windowing system distributor 'Fedora Project', version 11.0.11903000System Description:    Fedora release 25 (Twenty Five)Recent messages:Processing difference regions ... doneRefining difference region 1 ...file-local-copy: Wrong type argument: stringp, nilRefining difference region 1 ...file-local-copy: Wrong type argument: stringp, nilRefining difference region 1 ...file-local-copy: Wrong type argument: stringp, nilRefining difference region 1 ...file-local-copy: Wrong type
  argument: stringp, nilMark set [2 times]Configured using: 'configure --prefix=/usr/local/lib/emacs/ --sysconfdir=/etc --enable-locallisppath=/usr/local/share/emacs/site-lisp&n
 bsp;--libexecdir=/usr/local/lib/ --localstatedir=/usr/local/var --enable-largefile --with-x-toolkit=gtk3 --with-sound=yes --with-modules --with-xwidgets --without-pop --with-file-notification=yes --enable-link-time-optimization 'CFLAGS=-march=native -ffast-math -Os''Configured features:XPM JPEG TIFF GIF PNG RSVG SOUND GPM DBUS GCONF GSETTINGS NOTIFY ACLLIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIBTOOLKIT_SCROLL_BARS GTK3 X11 MODULES XWIDGETS LIBSYSTEMDImportant settings:  value of $LANG: en_US.utf8  value of $XMODIFIERS: @im=none  locale-coding-system: utf-8-unixMajor mode: MessagesMinor modes in effect:  tooltip-mode: t  global-eldoc-mode: t  electric-indent-mode: t  mouse-wheel-mode: t  tool-bar-mode: 
 t  menu-bar-mode: t  file-name-shadow-mode: t  global-font-lock-mode: t  font-lock-mode: t  blink-cursor-mode: t  auto-composition-mode: t  auto-encryption
 -mode: t  auto-compression-mode: t  buffer-read-only: t  line-number-mode: t  transient-mark-mode: (only . t)Load-path shadows:None found.Features:(shadow sort mail-extr emacsbug message puny seq byte-opt subr-x gvbytecomp byte-compile cl-extra help-mode cconv dired dired-loaddefsformat-spec rfc822 mml easymenu mml-sec password-cache epa derived epgepg-config gnus-util rmail rmail-loaddefs mm-decode mm-bodies mm-encodemail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047rfc2045 ietf-drums mm-util mail-prsvr mail-utils ediff-merg ediff-windediff-diff ediff-mult ediff-help ediff-init cl-loaddefs pcase cl-libediff-util ediff sh-script smie executable vc-dispatcher vc-svnperl-mode time-date mule-util tooltip eldoc electric uniquify ediff-hookvc-hooks lisp-flo
 at-type mwheel term/x-win x-win term/common-win x-dndtool-bar dnd fontset image regexp-opt fringe tabulated-list replacenewcomment text-mode elisp-mode lisp-mode prog-mode register pagemenu-
 bar rfn-eshadow isearch timer select scroll-bar mouse jit-lockfont-lock syntax facemenu font-core term/tty-colors frame cl-genericcham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet laokorean japanese eucjp-ms cp51932 hebrew greek romanian slovak czecheuropean ethiopic indian cyrillic chinese composite charscriptcase-table epa-hook jka-cmpr-hook help simple abbrev obarray minibuffercl-preloaded nadvice loaddefs button faces cus-face macroexp filestext-properties overlay sha1 md5 base64 format env code-pages mulecustom widget hashtable-print-readable backquote dbusbind inotifydynamic-setting system-font-setting font-render-setting xwidget-internalmove-toolbar gtk x-toolkit x multi-tty make-network-process emacs)Memory information:((conses 16 119611 5104) (symbols 48 22
 990 1) (miscs 40 233 165) (strings 32 25927 5228) (string-bytes 1 776766) (vectors 16 16538) (vector-slots 8 524401 4579) (floats 8 71 140) (intervals 56 3
 24 0) (buffers 976 23)) 

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bug#26394: 26.0.50; ediff file-local-copy: Wrong type argument: stringp, nil

[Noam Postavsky]

merge 26378 26385 26394
quit

On Fri, Apr 7, 2017 at 3:45 PM, Mutiny <mutiny.mutiny@rediffmail.com> wrote:
>
> starting Emacs (even with -Q). Loading 2 buffers, running ediff always
> results in
> file-local-copy: Wrong type argument: stringp, nil
>

Three hits in three days, this is a popular bug :)

bug#26394: 26394

[Mutiny]

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with the patches 88532ae..b7d6160 ediff behaves normal again. Thanks a lot for your support!

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