Generic validator with AsyncValidator

[FolabiAhn]

I'm just opening a little discussion on this subject.

I wonder if this part of the code will work with AsyncValidators ?
merge(this.productForm.valueChanges, ...controlBlurs).pipe( debounceTime(800) ).subscribe(value => { this.displayMessage = this.genericValidator.processMessages(this.productForm); });

My guess is this.genericValidator.processMessages(this.productForm) will end before AsyncValidators and so async errors won't be displayed. Maybe the errors will be displayed the next time this.genericValidator.processMessages(this.productForm) run again.