When you change icon in leaflet, you lose the draggability

[gabesmed]

via @miguelcobain:

Actually, there is a problem with icon binding (which is pretty useful):

When you change icon in leaflet, you lose the draggability. So you need to restore it.

I use this code:

  iconBinding: 'content.icon',
  _updateLayerOnIconChange: Ember.observer(function(){
    var newIcon = get(this, 'icon');
    var oldIcon = this._layer && this._layer.options.icon;
    if(oldIcon && newIcon && oldIcon !== newIcon) {
      var draggable = this._layer.dragging.enabled();
      this._layer.setIcon(newIcon);
      if(draggable) this._layer.dragging.enable();
      else this._layer.dragging.disable();
    }
  }, 'content.icon'),

I don't have much time right now, but it would be nice to have failing tests for this.