Suppose that I use minor mode MIN with a whole bunch of major modes. In one of those major modes, call it MAJ1, MIN's binding for a specific key K is undesirable; I would therefore like to suppress that definition and get Emacs to fall back to either the major mode's definition, if any, or the default in global-map. However, I don't want to change how MIN handles that key when it's used with any other major mode, and I want to preserve MIN's other effects in MAJ1. What's the best way to accomplish that?
The specific combination I'm concerned with is Typo minor mode + Markdown major mode (these are both installed as ELPA packages) and the printable character ` (ASCII backtick), which is syntactically significant in Markdown. typo-mode defines ` to insert ‘ (left single quote) and then replace that with a backtick if pressed again. 99% of the time when I type ` in a markdown file I want the ASCII backtick, so I want to get rid of the typo-mode binding, but only when the major mode is markdown-mode.
Typo mode is activated from text-mode-hook:
(add-hook 'text-mode-hook #'(lambda () (auto-fill-mode 1) (typo-mode 1)))
The obvious place to put a markdown-specific override is markdown-mode-hook, so I tried
(add-hook 'markdown-mode-hook #'(lambda () (local-set-key (kbd "`") 'self-insert-command)))
but that seems to have no effect at all; I'm guessing that the typo-mode keymap only gets applied after markdown-mode-hook finishes.
Complicating matters, markdown-mode has optional electric behavior for `, so ideally what I would be doing is punching a markdown-specific hole in the typo-mode keymap to allow the markdown-mode-map binding to take effect for this key, but if there's no good way to do that, I could live with a solution that just gets it bound to self-insert-command.