Linto Cheeran

use WapQuery for this ``` await window.Store.WapQuery.createGroup(name, contactIds); ``` refer [here](https://github.com/HedCET/whatsapp/blob/master/public/whatsapp.js)

iron-selector not updates its selection on dom repeat items when data change, i tested it in [polymer gmail](https://github.com/ebidel/polymer-gmail) @ebidel example that app fails to update `selected` property to child element

:+1: you r the bro bro

`selected` property of iron-seletor is propagated in to `mail-thread` element to show `selectable-icon` in it as `check` to recreate this issue - first select an `mail-thread` then the iron-selector `selected-items="{{selectedThreads}}"`...

this is the same situation when new mail come at the time selection is enabled ``` document.querySelector('#t'); ​…​​ var template = document.querySelector('#t'); undefined template.unshift("threads", document.querySelector('#t').threads[0]) 101 ``` 

@ebidel in my [example](https://github.com/HedCET/TorrentAlert/blob/master/.polymer/linto/project-list.html#L153) i already specified the attribute-for-selection but still iron-selector failed to update its selection

@ebidel https://github.com/PolymerElements/iron-selector/issues/82 this was filed in NOV

@ebidel any updates ?

```isNew``` & ```zeroValue``` r getter so ```zeroValue``` can't set

i changed all ```data``` to ```_data``` & add _data in properties ``` _data: { notify: true, }, ``` now it's working, all result getting in ```_data```