(Re)-binding \cj breaks enter key

I wanted to have vim key mappings instead of the arrows with the following commands:

bind \ch 'backward-char'
bind \cl 'forward-char'
bind \ck 'up-or-search'
bind \cj 'down-or-search'

Which seems to work great, except that because of re-binding of the \cj key combination, the enter key stopped working.

Is that intended behavior or a bug?

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