How to automatically insert sole duplicate candidate from 2 capfs?

[shtukarb]

How do I avoid this situation? I want corfu to behave as if it's a sole completion and insert it automatically. They are the same completion, just from different capfs (cape-dabbrev and cape-elisp-symbol combined with cape-capf-sort and cape-capf-super).

[minad]

The problem is that cape-capf-super cannot disambiguate the two candidates, since they come from different sources with different properties (annotations and more importantly the :exit-function). Try this:

(setq-local completion-at-point-functions (list (cape-capf-super #'cape-dabbrev #'cape-elisp-symbol))
            cape--dabbrev-properties nil
            cape--elisp-symbol-properties nil)

I could potentially make disambiguation stronger by only looking at properties that really matter (:exit-function).

[minad]

Pushed an improvement to Cape: minad/cape@30372e4. EDIT: Unfortunately I had to revert it again, since it will cause issues.