Riot: Component's Opts should be deep copy ?

[liangshuai]

The Data passed to a component should be deep copy, otherwise if we have mutilple instance, they may effect on each other.

1. Describe the issue:
   
2. Reproduce

DEMO

• Click the third item of second instance
• Click the second item of first instance, then we can find the checkbox status of the third item is wrong(Caused by the second instance's status)

[GianlucaGuarini]

@liangshuai what you are doing does not make really sense. Riot will not manage your data layer, you are mounting 2 tags with the same data and riot just uses your object. Other frameworks does not even allow you to do that https://jsfiddle.net/9t5t8xnn/ so I think this design decision is perfectly ok