How to fetch currency exchange rate based on posting date

When I create or make a new Payment Entry, the Posting Date is set as Today’s date and as such, the exchange rate is fetched based on that date.

When I change the Posting Date, I want the exchange rate to reflect the latest based on the new posting date.

@tundebabzy or anyone able to advise me on this? Thanks!

Can you please create a github issue against this?