Issue: game crashes if i do set_payer() on deserialized transaction

[ZenRepublic]

Description

creating transaction from serialized form:
var transaction:Transaction = Transaction.new_from_bytes(transaction_bytes)

and then setting a payer:
transaction.set_payer(wallet)

this crashes the game.

if i instead do transaction.set_signers([wallet]) it's not crashing

Suggested Improvements

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Extra Information

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[ZenRepublic]

ok so there is some sort of difference with transactions created regularly and those created with new_from_bytes()

for regular transactions, it crashes if i write transaction.set_signers()
and for new_from_bytes ones, it crashes if i do transaction.set_payer()