Are comets in the alert stream?

Hi,
Thank you for the information about 3I/ATLAS. I have a follow-up question regarding comets in Rubin alerts.
I pulled Fink data for Feb 26 to Mar 10 and can clearly see asteroids both in unknown detections and in ssObject matches. However, I couldn’t identify any comets, neither by characteristics (motion, magnitude) nor by designation search. Are comets present in the alert stream, or do they require a specific filter or a different data product?