[bug] props validation breaks on initial invalid property #2580
Description
Vue.js version
1.0.20
Reproduction Link
https://jsfiddle.net/ardoramor/64reuz66/
The following link shows that, if property is initially valid, making it invalid and then valid again does not break the reactive-ness:
https://jsfiddle.net/ardoramor/64reuz66/2/
Steps to reproduce
Run both links and wait for 5 seconds. On the second link, wait 5 more seconds (10 total).
What is Expected?
I expect that first link's child will accept and react to the change in the parent's url once it becomes valid. The expected behavior is just like in the second link but only if the 5 first seconds were skipped.
What is actually happening?
Once the child receives an invalid initial property, further changes to the properties are ignored.
How is this scenario applicable?
I have a parent that gets its data from a remote location. Initial value is not set. However, I expect that, once the value is fetched and set to the parent, child can react to it.