Find duplicated Vim key-maps

Vim is not a typed language and it allows keymapping multiple handlers onto the same key, which sometimes leads to unexpected behavior. Here’s a simple way to find conflicts.

:verbose imap <search your key here>

Here’s what I got, it greps all the keymaps from plugins too, which is pretty helpful.

i  (           * coc#_insert_key('request', 'iKA==0')
i  (<CR>       * (<CR>)<C-O>O
        Last set from ~/.config/nvim/init.vim line 76
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