I switched to ZSH a few months back and am spending more and more time in commandline + VIM/MacVIM.
Once I added the tag to my dotfile to force vi-mode on the commandline I lost the ability to do incremental searches of my zsh history. So here’s the fix which saves lots of typing:
First, the regular keybind to allow Ctrl-R to enter history search backward mode:
bindkey "^R" history-incremental-search-backward
To fix the fact that the prior keymap no longer works in vi-mode zsh, add this to a zsh config:
bindkey -M viins '^R' history-incremental-search-backward bindkey -M vicmd '^R' history-incremental-search-backward
Now I can ^R with aplomb…
This is thanks to the explanation from JDeBP over on superuser.com.