Allow requeued emails to keep their place in the queue

In MAX, when we requeue an email it puts the email to the end of the line. During our busiest season it's not uncommon for us to be 4+ days behind on responding to emails. When someone requeues an email, it could cause serious delays in the customer receiving a response. We'd like for requeued emails to keep their original place in line for when they originally entered the Contact Center.