_onfocusout(e) {
      const toBeFocused = e.relatedTarget;
      const focusedOutToSuggestions = this.Suggestions && toBeFocused && toBeFocused.shadowRoot && toBeFocused.shadowRoot.contains(this.Suggestions.responsivePopover);
      const focusedOutToValueStateMessage = toBeFocused && toBeFocused.shadowRoot && toBeFocused.shadowRoot.querySelector(".ui5-valuestatemessage-root");
      this._keepInnerValue = false;
      if (this.showClearIcon && !this.effectiveShowClearIcon) {
        this._clearIconClicked = false;
        this._handleChange();
      }
      // if focusout is triggered by pressing on suggestion item or value state message popover, skip invalidation, because re-rendering
      // will happen before "itemPress" event, which will make item "active" state not visualized
      if (focusedOutToSuggestions || focusedOutToValueStateMessage) {
        e.stopImmediatePropagation();
        return;
      }
      if (toBeFocused && toBeFocused.classList.contains(this._id)) {
        return;
      }
      this.open = false;
      this._clearPopoverFocusAndSelection();
      if (!this._clearIconClicked) {
        this.previousValue = "";
      }
      this.lastConfirmedValue = "";
      this.focused = false; // invalidating property
      this.isTyping = false;
      this._forceOpen = false;
    }
Called on "focusin" of the native input HTML Element.
<b>Note:</b> implemented in MultiInput, but used in the Input template.