Fixed events when slicing immutable Result (ethers-io#3765).

src.ts/contract/contract.ts

@@ -586,7 +586,7 @@ async function _emit(contract: BaseContract, event: ContractEventName, args: Arr
 
  const count = sub.listeners.length;
  sub.listeners = sub.listeners.filter(({ listener, once }) => {
- const passArgs = args.slice();
+ const passArgs = Array.from(args);
  if (payloadFunc) {
  passArgs.push(payloadFunc(once ? null: listener));
  }