ARUPDATE aborted by duplicate key error at AR_PGG_SERV.CC_ROUN3 on 2 scenarios

Summary:

ARUPDATE aborted by the error of "Cannot insert duplicate key row in object 'dbo.PS_PG_PENDST_TAO4' with unique index 'PS_PG_PENDST_TAO4'" at the step AR_PGG_SERV.CC_ROUN3.

This issue will occur on the following conditions;

- All records (items and payments) are entered with foreign currencies.
- This issue can be replicated when exchanged base amounts are different between items and payments.
  (For example, 1 payment base amount is 3 USD and the totals of 3 item amounts are 3 USD.
  But those amounts are exchanged to JPY by the rate 88.45, payment base amount will be 265 JPY, and the totals of 3 item base amounts are 264 JPY.