Save paragraph instances one after another to prevent term duplication

Problem/Motivation

My editors can add multiple event dates to a node using a paragraphs type which also includes a taxonomy reference field for the type of each individual event (for example "concert"). Field settings are autocomplete tagging and "Create referenced entities if they don't already exist".

If they add multiple instances of this paragraph on node creation, all containing a similar, non existent tag of "event type", this term will be created multiple times with the same name, but varying TIDs, after saving the node.

Proposed resolution

I would think the existence of the entered terms has to be validated for each individual instance of the taxonomy field/paragraph, one after another, because it could appear multiple times inside the node form.