BIP-110 fork has replay attack risk, selling forked coins or spending real Bitcoin

Odaily News: The proposed Bitcoin fork is related to the controversial BIP-110 proposal, which may generate duplicate balances on both chains, and holders may therefore attempt to sell seemingly free forked coins.

Since both chains initially accept the same transactions, selling forked coins could trigger a replay attack and simultaneously spend the seller's real Bitcoin on the main chain. Developers stated that there is no built-in replay protection at least until early September, and non-professional users should avoid transferring Bitcoin during a potential fork.