> Two comments here:
> 1. It should not be a lambda. Better have a function or even command
> 2. The logic is not right. You should better follow
>    `org-cite-basic--key-completion-table':
>    `org-cite-basic--parse-bibliography', `org-cite-basic--get-entry',
>    and `org-cite-basic--get-field'.

And this time with a patch, apologies.

/Tor-björn