Is it possible to accepting/finish a completion only selected with insert_next and insert_prev?

[Gaweringo]

I am trying to use something similar to the Emacs behavior recipe, but I can't figure out how to tell blink that I am finished with a completion. Meaning that I want to press <C-i> to accept the inserted item, so that when I press my insert_next keybind (C-j) again, it doesn't change the previously inserted completion.

Example:
Using the menu and select_next and select_prev I can insert a path as follows: ./ then <C-n> to cycle to the correct directory, then accept it with <C-i> and then I can cycle though the next part of the path again with <C-n>.

But with insert_next and insert_prev when I do ./, then <C-j> to cycle to the directory, pressing <C-i> just uses the fallback and pressing <C-j> again cycles through the already inserted suggestion again.

Here's a demonstration:

select_vs_insert.mp4

The question is: Is there a way to tell blink that a select_next and select_prev only completion has been accepted?