emacs Got Assertion failed: (derived-mode-p 'ibuffer-mode) about emacs.d HOT 5 CLOSED

Hmm, interesting: if you hit /. very quickly, so that the which-key window doesn't pop up, then this doesn't happen, so I think it's some sort of interaction between which-key and ibuffer. I'll see if I can figure out what the issue is. Interestingly, the equivalent in dired (*.) doesn't have the same issue.

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I did a test on a stock emacs (same from snap without which-key) and it is working as it is supposed to do...Thanks for your answer and help.

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I found and fixed it: some kind of weird interaction with the fullframe package, which I plan to replace anyway. So I've just disabled it for that command.

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lisp/init-ibuffer.el

(require-package 'fullframe)
(with-eval-after-load 'ibuffer
(fullframe ibuffer ibuffer-quit))

So I only need to suppress those lines..right ? Thanks for your nice work.

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Yes, but I've pushed that change to this repo.

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