Item: sliding item issues with borders

[brandyscarney]

1. When dragging a sliding item with no border, it shows a border during drag.
2. When dragging a sliding item with a border, there is a short gap where no border is seen before the border shows again.

Item without border:

<ion-item-group>
  <ion-item-divider sticky>
    Divider
  </ion-item-divider>

  <ion-item-sliding>
    <button ion-item>
      Item
    </button>
    <ion-item-options>
      <button favorite>
        Favorite
      </button>
    </ion-item-options>
  </ion-item-sliding>
</ion-item-group>

Item with border (http://localhost:8000/dist/e2e/item/sliding/):

<ion-item-sliding>
  <ion-item>
    <h3>Item</h3>
  </ion-item>
  <ion-item-options>
    <button primary>Archive</button>
  </ion-item-options>
</ion-item-sliding>

http://g.recordit.co/ky6FbXEMKc.gif

Which Ionic Version? 1.x or 2.x

2.0 beta 9 (master)