bug#30646: 27.0.50; Occur next-error and recentering bug

[p.stephani2@gmail.com]

M-x set-variable RET next-error-recenter RET (4) RET
M-x occur, use something that gives results (e.g. ';;' in the scratch
buffer)
M-g M-n

This signals an error
next-error: ‘recenter’ing a window that does not display current-buffer.

Stack trace is

Debugger entered--Lisp error: (error "‘recenter’ing a window that does not  
display current-buffer.")
   recenter((4))
   next-error(nil)
   funcall-interactively(next-error nil)
   call-interactively(next-error nil nil)
   command-execute(next-error)


In GNU Emacs 27.0.50 (build 21, x86_64-pc-linux-gnu, GTK+ Version 3.22.24)
  of 2018-02-28 built on localhost
Repository revision: 108ce84432d597f92637ea74bd0a094224d157de
Windowing system distributor 'The X.Org Foundation', version 11.0.11903000
System Description: Debian GNU/Linux buster/sid

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Configured using:
  'configure --without-threads --enable-gcc-warnings=warn-only
  --enable-gtk-deprecation-warnings --without-pop --with-mailutils
  --enable-checking --enable-check-lisp-object-type --with-modules
  'CFLAGS=-O0 -ggdb3''

Configured features:
XPM JPEG TIFF GIF PNG SOUND DBUS GSETTINGS NOTIFY GNUTLS FREETYPE XFT
ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 MODULES JSON

Important settings:
   value of $LANG: en_US.UTF-8
   locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
   tooltip-mode: t
   global-eldoc-mode: t
   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
   line-number-mode: t
   transient-mark-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message rmc puny seq byte-opt gv
bytecomp byte-compile cconv cl-loaddefs cl-lib dired dired-loaddefs
format-spec rfc822 mml easymenu mml-sec password-cache epa derived epg
epg-config gnus-util rmail rmail-loaddefs mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047
rfc2045 ietf-drums mm-util mail-prsvr mail-utils elec-pair time-date
mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar
dnd fontset image regexp-opt fringe tabulated-list replace newcomment
text-mode elisp-mode lisp-mode prog-mode register page menu-bar
rfn-eshadow isearch timer select scroll-bar mouse jit-lock font-lock
syntax facemenu font-core term/tty-colors frame cl-generic cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese composite charscript charprop
case-table epa-hook jka-cmpr-hook help simple abbrev obarray minibuffer
cl-preloaded nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote dbusbind inotify
dynamic-setting system-font-setting font-render-setting move-toolbar gtk
x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 16 95129 7987)
  (symbols 48 20164 1)
  (miscs 40 40 121)
  (strings 32 28285 2157)
  (string-bytes 1 757754)
  (vectors 16 14174)
  (vector-slots 8 499090 14200)
  (floats 8 50 67)
  (intervals 56 223 0)
  (buffers 992 12))

-- 
Google Germany GmbH
Erika-Mann-Straße 33
80636 München

Registergericht und -nummer: Hamburg, HRB 86891
Sitz der Gesellschaft: Hamburg
Geschäftsführer: Paul Manicle, Halimah DeLaine Prado

If you received this communication by mistake, please don’t forward it to
anyone else (it may contain confidential or privileged information), please
erase all copies of it, including all attachments, and please let the sender
know it went to the wrong person.  Thanks.