Find the lost-update flaw in this generated replacement handler.
JavaScript
async function replaceOrder(id, input, ifMatch, db) {
const current = await db.orders.find(id);
if (!current) return { status: 404 };
if (ifMatch !== `"order-${current.version}"`) {
return { status: 412 };
}
const next = { id, status: input.status, version: current.version + 1 };
await db.orders.update(id, next);
return { status: 200, body: next };
}