bug#48153: 28.0.50; minor mode keymaps should not override keymap given to read-from-minibuffer

[Jimmy Yuen Ho Wong <wyuenho@gmail.com>]

After typing C-x b or C-x C-f, the minor mode maps from the buffer that launched
the minibuffer will override the keymap given to `read-from-minibuffer`,
this seems to be a regression in emacs 28 master.

Reproduction:

1. Turn on `ido-mode`
2. Turn on some minor mode that rebinds `C-k` with `(define-key
some-minor-mode-map (kbd "C-k") 'some-func)`
3. C-x b
4. Select a buffer and type C-k

Expectation:

C-k should be bound to `ido-kill-buffer-at-head` and calls it, but
instead `some-func` is called.

Since C-k is bound in `ido-completion-map`, and it is given to
`read-from-minibuffer`, all the bindings in `ido-completion-map` should
take precedence.

Additional info:

After some debugging with `enable-recursive-minibuffers`, I typed
Shift-Meta-; to open a recursive eval buffer inside the
`ido-switch-buffer` buffer, `(cl-loop for buf in (buffer-list) if
(minibufferp buf) do (with-current-buffer buf (key-binding (kbd
"C-k"))))` reveals that indeed C-k isn't bound inside any minibuffer
buffers.


In GNU Emacs 28.0.50 (build 1, x86_64-apple-darwin20.4.0, NS appkit-2022.44 Version 11.3 (Build 20E232))
 of 2021-05-02 built on mg559.lan
Repository revision: f1adb6b77a948e4f2f3223940edb15e56c30466d
Repository branch: HEAD
Windowing system distributor 'Apple', version 10.3.2022
System Description:  macOS 11.3

Configured using:
 'configure --prefix=/opt/local --disable-silent-rules --without-dbus
 --without-gconf --without-libotf --without-m17n-flt --with-gmp
 --with-gnutls --with-json --with-xml2 --with-modules --infodir
 /opt/local/share/info/emacs --with-ns --with-lcms2 --without-harfbuzz
 --without-imagemagick --without-xaw3d --with-native-compilation
 --with-rsvg 'CFLAGS=-pipe -Os
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX11.3.sdk -arch
 x86_64' 'CPPFLAGS=-I/opt/local/include
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX11.3.sdk'
 'LDFLAGS=-L/opt/local/lib -Wl,-headerpad_max_install_names -Wl,-no_pie
 -Wl,-syslibroot,/Library/Developer/CommandLineTools/SDKs/MacOSX11.3.sdk
 -arch x86_64''

Configured features:
ACL GIF GLIB GMP GNUTLS JPEG JSON LCMS2 LIBXML2 MODULES NATIVE_COMP
NOTIFY KQUEUE NS PDUMPER PNG RSVG THREADS TIFF TOOLKIT_SCROLL_BARS XIM
ZLIB

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

Major mode: ELisp/l

Minor modes in effect:
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  display-line-numbers-mode: t
  subword-mode: t
  form-feed-mode: t
  beginend-prog-mode: t
  imenu-list-minor-mode: t
  purpose-mode: t
  diff-hl-flydiff-mode: t
  crm-custom-mode: t
  override-global-mode: t
  dap-tooltip-mode: t
  dap-ui-many-windows-mode: t
  dap-ui-controls-mode: t
  dap-ui-mode: t
  treemacs-filewatch-mode: t
  treemacs-follow-mode: t
  treemacs-git-mode: deferred
  treemacs-fringe-indicator-mode: t
  global-git-commit-mode: t
  magit-auto-revert-mode: t
  shell-dirtrack-mode: t
  winner-mode: t
  which-key-mode: t
  which-function-mode: t
  smooth-scrolling-mode: t
  show-smartparens-global-mode: t
  show-smartparens-mode: t
  smartparens-global-mode: t
  smartparens-mode: t
  show-paren-mode: t
  server-mode: t
  savehist-mode: t
  save-place-mode: t
  rxt-global-mode: t
  rxt-mode: t
  recentf-mode: t
  minibuffer-depth-indicate-mode: t
  ido-vertical-mode: t
  ido-ubiquitous-mode: t
  global-whitespace-cleanup-mode: t
  whitespace-cleanup-mode: t
  global-tree-sitter-mode: t
  global-so-long-mode: t
  global-origami-mode: t
  origami-mode: t
  global-move-dup-mode: t
  move-dup-mode: t
  global-flycheck-mode: t
  global-diff-hl-show-hunk-mouse-mode: t
  diff-hl-show-hunk-mouse-mode: t
  global-diff-hl-mode: t
  diff-hl-mode: t
  global-company-mode: t
  company-mode: t
  global-auto-revert-mode: t
  flx-ido-mode: t
  ido-everywhere: t
  icomplete-vertical-mode: t
  icomplete-mode: t
  fido-mode: t
  editorconfig-mode: t
  desktop-save-mode: t
  delete-selection-mode: t
  dap-auto-configure-mode: t
  dap-mode: t
  yas-minor-mode: t
  auto-compile-on-save-mode: t
  auto-compile-mode: t
  amx-mode: t
  abridge-diff-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  window-divider-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  temp-buffer-resize-mode: t
  buffer-read-only: t
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  visual-line-mode: t
  transient-mark-mode: t

Load-path shadows:
/opt/local/share/emacs/site-lisp/cmake-mode hides /Users/jimmyyuenhowong/.emacs.d/elpa/cmake-mode-20210104.1831/cmake-mode
/Users/jimmyyuenhowong/.emacs.d/elpa/transient-20210426.2141/transient hides /Applications/MacPorts/Emacs.app/Contents/Resources/lisp/transient

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