Is it possible for a user to edit their payment request after submitting for approval?

We're implementing fluid payment request as part of an update to 9.2.36 with PT 8.57.14. As we've presented the fluid functionality to users, we've been asked if it's possible for a user to edit a payment request after they've submitted it for approval, as long as the payment request hasn't been vouchered.

This is possible with other transactions, for example ePro requisitions can be edited by the requester even if the requisition has been approved. Users receive a message that editing the requisition will pull it out of approval workflow, but they're able to do that and make any necessary edits before resubmitting for approval.