@Ricardo85 @Andrea-and-Francis0
If this is real ... and not a glitch .... I think this is a really good thing!
If the guest count is defaulting to zero then hosts will know that the guest obviously skipped over the question. The host will now raise questions with the guest as to how many people are coming and expect an answer to complete the reservation.
Before, when the guest count defaulted to one, you never really knew if the count was truly one or if the guest didn't update the field. More times than not, this is the case.