webpack: Compiler.js TypeError: Function has non-object prototype 'null' in instanceof check

when I const webpack = require(‘webpack’); const compiler = webpack(CONFIG); console.log(compiler);

it can not console.log; and it has a error: TypeError: Function has non-object prototype ‘null’ in instanceof check

Then I debug in wepack/lib/Compiler.js:

// wepack/lib/Compiler.js
class Compiler {
	/**
	 * @param {string} context the compilation path
	 */
	constructor(context) {
		this.hooks = Object.freeze({
			/** @type {SyncHook<[]>} */
			initialize: new SyncHook([]),
                        // shouldEmit: new SyncBailHook(["compilation"]),
			// done: new AsyncSeriesHook(["stats"]),
                        .......
		});
		console.log(this)
       }
       .........
 }

it tell me that TypeError: Function has non-object prototype ‘null’ in instanceof check;

so next, I find path: webpack/node_modules/tapable/lib/SyncHook.js, Comment out this line of code

........
function SyncHook(args = [], name = undefined) {
	const hook = new Hook(args, name);
	hook.constructor = SyncHook;
	hook.tapAsync = TAP_ASYNC;
	hook.tapPromise = TAP_PROMISE;
	hook.compile = COMPILE;
	return hook;
}

// SyncHook.prototype = null;

module.exports = SyncHook;

it worked， Results printing：

Compiler {
  hooks: {
    initialize: Hook {
      _args: [],
      name: undefined,
      taps: [],
      interceptors: [],
      _call: [Function: CALL_DELEGATE],
      call: [Function: CALL_DELEGATE],
      _callAsync: [Function: CALL_ASYNC_DELEGATE],
      callAsync: [Function: CALL_ASYNC_DELEGATE],
      _promise: [Function: PROMISE_DELEGATE],
      promise: [Function: PROMISE_DELEGATE],
      _x: undefined,
      compile: [Function: COMPILE],
      tap: [Function: tap],
      tapAsync: [Function: TAP_ASYNC],
      tapPromise: [Function: TAP_PROMISE],
      constructor: [Function: SyncHook]
    }
  }
}

I think it is bug, the same to:
SyncHoo.js SyncBailHook.js AsyncParallelHook.js AsyncSeriesHook.js AsyncSeriesBailHook.js

webpack version: 5.1.3 Node.js version: v14.14.0 Operating System: mac Additional tools: