Throbber/spinner is not shown while "suggest" is running

[keul]

When using the geocode method on the IGeocode instance, a spinner is displayed showing the fetch attempt. This is not true if I use my suggest method.

This is easily hackable from outside:

    const control = new L.Control.Geocoder({
        ....
    });
    control.on(
      'startsuggest',
      function() {
        DomUtil.addClass(
          this._container,
          'leaflet-control-geocoder-throbber'
        );
      },
      this
    );
    control.on(
      'finishsuggest',
      function() {
        DomUtil.removeClass(
          this._container,
          'leaflet-control-geocoder-throbber'
        );
      },
      this
    );

But I think this should be a default behavior.