Charge Account Reverted to Another Charge Account after Rejection

I have a user who submitted a requisition with charge account 1570 and then the requisition got rejected. When they went back into to correct the requisition, the charge account changed to a different one before editing.

I am waiting to confirm if the user had it in their preferences, but I have tested this and was unable to reproduce the issue.

User: "I had entered the request a couple of days ago. The accountant sent back for me to adjust something. I had entered another request under another cost center earlier this morning (2130)
When I opened the returned request, it showed what I sent you in the screen shot. Everything had been changed to the cost center I had been in this morning."