[Bug] Width not respected when a Symbol
When updating to Sketch 49, Paddy's behaviour regarding symbols changed. The plugin seems to work as expected when the group is not a symbol. When Paddy is used on a symbol, it doesn't seem to respect the width of the background (rectangle).

![paddy issue](https://user-images.githubusercontent.com/2038925/37042371-98c94ae4-215e-11e8-86f8-eeb97219baa2.png)