vertico-mode-map is not honored in bind

[rickalex21]

Hello thanks for this awesome macro,

I tested this on a bare bones configuration with the default vertico config in the Readme.
I have been using embark to yank but I decided to use vertico instead.

Steps to reproduce:

1. C-h f Describe Function
2. Choose one and C-k

It opens up the help instead of running the function. However, if I bind C-k to
vertico-previous function it works fine.

Why does C-k work fine when I bind it to vertico-previous but not my/vertico-yank-candidate?

(use-package vertico
  :init
  (vertico-mode)

  :config
  (defun my/vertico-yank-candidate ()
        "Copy the current candidate to the clipboard."
        (interactive)
        (kill-new (vertico--candidate))(vertico-exit))

  :bind (:map vertico-map
                  ("C-n" . vertico-next)
                  ("C-p" . vertico-previous)
                  ("C-k" . my/vertico-yank-candidate)
                  ;; ("C-k" . vertico-previous)
                  ("C-d" . vertico-scroll-down)
                  ("C-u" . vertico-scroll-up)))

(use-package savehist
  :init
  (savehist-mode))

(use-package emacs
  :init
  (defun crm-indicator (args)
    (cons (format "[CRM%s] %s"
                  (replace-regexp-in-string
                   "\\`\\[.*?]\\*\\|\\[.*?]\\*\\'" ""
                   crm-separator)
                  (car args))
          (cdr args)))
  (advice-add #'completing-read-multiple :filter-args #'crm-indicator)
  (setq minibuffer-prompt-properties
        '(read-only t cursor-intangible t face minibuffer-prompt))
  (add-hook 'minibuffer-setup-hook #'cursor-intangible-mode)
  (setq enable-recursive-minibuffers t))

Thanks