private void clickOnListItemWithMetaKey(String label, boolean withMetaKey, boolean withGuardAjax) {
        for (WebElement element : getSelectlistbox().findElements(By.tagName("li"))) {
            if (element.getText().equalsIgnoreCase(label)) {
                if (withMetaKey) {
                    Actions actions = new Actions(getWebDriver());
                    Action action = actions.keyDown(Keys.META).click(element).keyUp(Keys.META).build();
                    if (withGuardAjax) {
                        action = PrimeSelenium.guardAjax(action);
                    }
                    action.perform();
                }
                else {
                    if (withGuardAjax) {
                        element = PrimeSelenium.guardAjax(element);
                    }
                    element.click();
                }
                break;
            }
        }
    }
Is the input using AJAX "itemUnselect" event?

@return true if using AJAX for itemUnselect
primefaces-selenium/primefaces-selenium-components/src/main/java/org/primefaces/selenium/component/SelectManyMenu.java