Key binding for `ivy-immediate-done`

[digikar99]

While creating a new file whose name matches the prefix of an existing file, one requires the command ivy-immediate-done while using ivy completion. Is there any recommendation for how this can be made more intuitive for users?

Reference: https://www.reddit.com/r/emacs/comments/a6ap3k/in_ivy_how_do_i_create_a_file_whose_name_is_a/