Multicurrency use in difference Purchase order for one supplier

I am trying to create two difference Transfer POs for one supplier.

example :

One Transfer Purchase order as O3 and another Transfer Purchase order OK for same supplier ABC123.

Supplier default currency code setup is PLN(POLLAND) in SUPPILER MASTER.

Both O3 and OK Order created with PLN currency code . As requirement we want O3 order to be create in another currency like EUR .

So how we can achieve this ?

FYI , i found one bug also .

Bug 25385239 : MULTIPLE CURRENCIES FOR ONE SUPPLIER

but could not see much details and helpful for me