shell-mode C-j and C-k not working

[mijoharas]

in *shell-mode* (SPC a s i) and eshell (SPC a s e) C-j and C-k (which should be next and previous in history) do not work ( spacemacs 0.60.0 ). C-j goes down a line and C-k cycles up to ? and then ^K regardless of the history.

In addition SPC m H does not seem to work in *eshell* (it fails upon attempted insertion into the buffer.)

[mijoharas]

I can only find these having been implemented for the python repl (and ac and helm e.t.c), not for the general shell anywhere (though my grep-fu could be lacking). C-j is bound to electric-line-and-maybe-indent and C-k is bound to evil-insert-digraph which is causing the problem. have these ever been implemented for comint-mode (or whatever the correct term is)?

[syl20bnr]

Cool idea, defining them for comint-mode may make them available for all the REPLs.
The conventions to implements for all REPLs and terminals are here: https://github.com/syl20bnr/spacemacs/blob/develop/doc/CONVENTIONS.md#in-terminal