Yeah, if the transaction is replayed on the fork chain, and the transaction signs for a utxo that doesnt exist over there, it's an invalid transaction.
But honestly, splitting coins for BIP-110 is a ...
Some clarification
110 can’t have a spot market and separate ticker unless a user rejected soft fork were to occur.
As it stands today both chains will share the same ticker and will have parallel blockchains. All addresses / wallets will be able to spend on both chains.
Your bitcoin wouldn’t be lost. The recipient could spin up a node on the competing chain and recover the bitcoin with their keys. The transaction could be in a different block height and have a different block hash.
Moving forward UTXOs that originate on 110 chain will not be compatible with core chain and would be invalid because they do not exist on core chain.
110 can’t have a spot market and separate ticker unless a user rejected soft fork were to occur.
As it stands today both chains will share the same ticker and will have parallel blockchains. All addresses / wallets will be able to spend on both chains.
Your bitcoin wouldn’t be lost. The recipient could spin up a node on the competing chain and recover the bitcoin with their keys. The transaction could be in a different block height and have a different block hash.
Moving forward UTXOs that originate on 110 chain will not be compatible with core chain and would be invalid because they do not exist on core chain.