Bug Report: Paid Amount Not Updating Automatically in Payment Entry (Internal Transfer with Different Currencies)

[Awey01]

Information about bug

Steps to Reproduce:

Create a Payment Entry of type Internal Transfer, where the accounts involved use two different currencies.
Change the Received Amount.
Expected Behavior:

The Paid Amount should update automatically based on the exchange rate whenever the Received Amount is modified.
Actual Behavior:

The Paid Amount does not update automatically when the Received Amount is changed.
The Paid Amount only updates when the Target Exchange Rate is changed to a different value.
For example, if the current Target Exchange Rate is 1.05, and you delete and re-enter 1.05, nothing happens.
However, if you change the rate to another value (e.g., 1.04), the Paid Amount updates.
After this, if you revert the Target Exchange Rate back to 1.05, the Paid Amount updates again.
The exchange rate must first be changed to a different value before reverting to the original rate to trigger the recalculation.

Module

accounts

Version

ERPNext: v15.48.4 (version-15)
Frappe Framework: v15.52.0 (version-15)

And also in

Frappe 16

Installation method

manual install

Relevant log output / Stack trace / Full Error Message.

[Awey01]

Same bug with Received Amount - Received Amount does not update automatically when the Paid Amount is changed.