Booking with same email changes previous names

Hello and thank you very much for the great plugin! It is a huge help for our church to manage the bookings for the church services during the pandemic.

But since the last update (I think) we observe a problem which is quite an issue for us. In the event the option for multiple bookings with one email is allowed. But when someone does more than one booking with the same email address for different people, all names will be overwritten with the last names. Not only in this particular event, but in other events, too. I didn’t observe this behaviour in the weeks before, and I think the plugin shouldn’t do that. For now, I will change all events, with preventing multiple bookings to avoid confusion in the data.

Is this a bug or do I miss a setting? Thank you for looking into this!