Interest Payment Type Change wizard; if the only change made is to the Reference field the wizard cannot be completed

For Deposit Accounts, if the only change made to Interest Payment details, in the Interest Payment Type Change wizard, is to the Reference field(s) then when trying to finish the wizard the message "You must revise the Interest Payment Type details" appears.

This means you need to change another field at the same time to affect a change to the Reference fields(s).