When registering for an event using the Event Registration Form 2.0 in which the maximum registrants available per checkout field is set, step 1 on the form allows users to add more than the maximum allowed. On step 2 of the form, selecting a number higher than the set maximum from the quantity drop-down will result in the error, "Maximum allowed registrants per checkout is [Maximum number set on the form]".
We are currently evaluating this issue for a fix in a future service pack.
Steps to Duplicate
1) Add an Event Registration Form 2.0 2) Under options, set the Maximum registrants available per checkout to 2 3) When registering for the event, add 4 attendees on Step 1 of form > Click continue 4) On Step 2 of the registration, set the quantity to 4 > Click Next 5) Notice you get the error "Maximum allowed registrants per checkout is 4"