xstate.js：无法在子服务保护中捕获错误

问：

是否有可能在警卫中发现异常？

例如：

const { interpret, createMachine } = require("xstate");

const fetchMachine = createMachine(
  {
    initial: "start",
    states: {
      start: {
        on: {
          LETS_TRY: "subService",
        },
      },
      subService: {
        invoke: {
          src: () => Promise.resolve(),
          onDone: [
            {
              target: "stop",
              cond: "someGuard",
            },
          ],
          onError: "stop",
        },
      },
      stop: {
        type: "final",
      },
    },
  },
  {
    guards: {
      someGuard: () => {
        throw new Error("error in guard");
      },
    },
  }
);

try {
  interpret(fetchMachine)
    .start()
    .send("LETS_TRY");
} catch (e) {
  console.log("exception caught", e.message);
}

此代码的预期输出是“捕获异常”，但我收到以下错误消息：

Error: Unable to evaluate guard 'someGuard' in transition for event 'done.invoke.(machine).subService:invocation[0]' in state node '(machine).subService'

示例也可在 codesandbox 上找到。