fix(microtask): fix argument list on next fn call

src/modules/esl-utils/async/microtask.ts

@@ -3,13 +3,14 @@
  * (as a microtask produced with Promise)
  */
 export function microtask<T>(fn: (...arg: [T?]) => void, thisArg?: object): (arg?: T) => void {
-  const args: T[] = [];
+  let args: T[] = [];
   return function microtaskFn(arg: T): void {
     args.push(arg);
     if ((microtaskFn as any).request) return;
     (microtaskFn as any).request = Promise.resolve().then(() => {
       delete (microtaskFn as any).request;
       fn.call(thisArg || this, args);
+      args = [];
     });
   };
 }

src/modules/esl-utils/async/test/microtask.test.ts

@@ -23,4 +23,16 @@ describe('sync/microtask', () => {
     await Promise.resolve();
     expect(fn).toBeCalledWith(expect.arrayContaining(params));
   });
+  test('Decorated as microtask callback refreshes after decorated method call (leak protected)', async () => {
+    const fn = jest.fn();
+    const decorated = microtask(fn);
+    const params1 = [Symbol('Arg 1'), Symbol('Arg 2')];
+    for (const param of params1) decorated(param);
+    await Promise.resolve();
+
+    const params2 = [Symbol('Arg 3'), Symbol('Arg 4')];
+    for (const param of params2) decorated(param);
+    await Promise.resolve();
+    expect(fn).lastCalledWith(params2);
+  });
 });