AutoComplete hides when click inside input

[evgd]

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[x] bug report => Search github for a similar issue or PR before submitting
[ ] feature request => Please check if request is not on the roadmap already https://github.com/primefaces/primeng/wiki/Roadmap
[ ] support request => Please do not submit support request here, instead see http://forum.primefaces.org/viewforum.php?f=35

Plunkr Case (Bug Reports)
https://www.primefaces.org/primeng/#/autocomplete

Current behavior
Click on input when input was already in focus forces suggestions panel to hide.

Expected behavior
Suggestion should stay there

• Angular version: 2.x

• PrimeNG version: 2.x-4.x

• Browser: [all | Chrome XX | Firefox XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView ]

• Language: [all | TypeScript X.X | ES6/7 | ES5]

• Node (for AoT issues): node --version =

[evgd]

thanks!
to whom are not on master following code can be used as temporary patch:

@Component({
...
})
export class XyzComponent implements AfterViewInit, OnDestroy {

    @ViewChild(AutoComplete)
    public autocompleteComponent: AutoComplete;
	
	private unsubscribeOnDestory;

    public ngAfterViewInit() {
        this.autocompleteComponent.documentClickListener();
        this.unsubscribeOnDestory = this.renderer.listenGlobal('body', 'click', (evt: Event) => {
            if (evt.target === this.autocompleteComponent.inputEL.nativeElement) {
                return;
            }

            this.autocompleteComponent.hide();
        });
    }

    public ngOnDestroy() {
        this.unsubscribeOnDestory();
    }
}