(New UI) On Project reopening, will the Q&A pairs be updated or duplicated in the Content Library?

If you have Save in Answer Library turned ON for the project in the Project Settings, your Q&A pairs will be saved to the Content Library when the section(s) are marked as Complete. If the project is reopened, and changes are made to the Q&A pairs, they will be saved and updated in the Content Library and not duplicated.