Parse pasted terms by delimiter

Currently when we use an Autocomplete Deluxe field we can configure a delimiter to add a term instead of the enter key.

It would be useful for the field to automatically add matching delimited terms to the field when the user pastes a string of terms in, such as from an external data source.

For example, I am using ACD to link together similar content based on an ID number. When I paste 5 ID numbers separated with the delimiter, nothing happens (no search results found).
If I enter one term and add the delimiter, the text I entered is removed (except for the delimiter) and the term is not added.