Duty Completion

[Palinq]

Hello,

I recently got caught by this happening in a Savage run - the leader formed a party for O1S saying it was 2 chests and included the "Duty Completion" tag in the party finder. However, after defeating the boss we only received 1 chest. I know this is because the leader did NOT queue with duty completion (or ignored the warnings when they did queue) and that if I were the leader I'd be able to do this.

My question is - is there anyway for me as a normal group member to know that the run is NOT two chests once we've queued?

Thank you!