`lastDate()`/`lastExecution` does not reflect the last execution of the registered callback(s)

import { CronJob } from 'cron';

console.log('=== Issue: lastExecution changes while callback is running ===\n');
console.log('Cron: every 5 seconds');
console.log('Callback: takes 60 seconds');
console.log('waitForCompletion: true (should prevent overlapping executions)\n');

let callbackStartTime: Date | null = null;

const callback = async () => {
  callbackStartTime = new Date();
  console.log(` Callback STARTED at: ${callbackStartTime.toISOString()}\n`);
  await new Promise((resolve) => setTimeout(resolve, 60000)); // 60 seconds
  console.log(` Callback COMPLETED at: ${new Date().toISOString()}\n`);
  callbackStartTime = null;
};

const job = new CronJob('*/5 * * * * *', callback, null, true, null, null, false, null, false, true);

// Monitor every 2 seconds
setInterval(() => {
  const now = new Date();
  const actual = job.lastExecution;
  const isRunning = job.isCallbackRunning;

  if (!actual) return;

  console.log(`[${now.toISOString()}]`);
  console.log(`  isCallbackRunning: ${isRunning}`);
  console.log(`  ACTUAL   lastExecution: ${actual.toISOString()}`);

  if (callbackStartTime) {
    console.log(`  EXPECTED lastExecution: ${callbackStartTime.toISOString()}`);
    const diff = actual.getTime() - callbackStartTime.getTime();

    if (Math.abs(diff) > 100) {
      console.log(`  ❌ DIFFERENCE: ${diff}ms`);
      console.log('  ❌ lastExecution changed while callback is STILL RUNNING!');
    } else {
      console.log('  ✅ lastExecution matches callback start time');
    }
  }
  console.log('');
}, 2000);

setTimeout(() => {
  job.stop();
  console.log('\n=== Summary ===');
  console.log('Problem: lastExecution updates every 5s even though callback is still running');
  console.log('Expected: lastExecution should stay constant until callback completes');
  console.log('Solution: Set lastExecution in fireOnTick() after isCallbackRunning = true');
  process.exit(0);
}, 65000);