iron-selector.items is not changed during "iron-items-changed" event fired because the event is fired before this._updateItems() in Polymer.IronSelectableBehavior._observeItems.
I think need to swap this._updateItems() and this.fire('iron-items-changed', ...) in _observeItems
iron-selector.items is not changed during "iron-items-changed" event fired because the event is fired before this._updateItems() in Polymer.IronSelectableBehavior._observeItems. I think need to swap this._updateItems() and this.fire('iron-items-changed', ...) in _observeItems
pull request: https://github.com/PolymerElements/iron-selector/pull/90