Merge pull request #1255 from larissacribeiro/LPD-61368

fix(alloy-ui): Avoid accessibility issues on calendar's add event modal

Author: bryceosterhaus

third-party/projects/alloy-ui/src/aui-datepicker/js/aui-datepicker.js

@@ -273,6 +273,8 @@ A.mix(DatePickerBase.prototype, {
 
         instance.clearSelection(true);
 
+        instance._isInitializing = instance._isInitializing ?? true;
+
         instance.selectDatesFromInputValue(instance.getParsedDatesFromInputValue());
     },
 
@@ -334,6 +336,12 @@ A.mix(DatePickerBase.prototype, {
 
         instance._setCalendarToFirstSelectedDate();
 
+        if (instance._isInitializing) {
+            instance._isInitializing = false;
+            
+            return;
+        }        
+
         if (instance.get('autoHide') && (selectionMode !== 'multiple')) {
             instance.hide();