defineProperty doesn't check for equality

[fabiospampinato]

I think there's a problem here:

on-change/index.js

Line 198 in 5a9b0f8

const result = Reflect.defineProperty(target, property, descriptor);

Each defineProperty call is basically counted as a change, even if the property descriptor is exactly the same, I think the current and the next descriptor need to be compared before triggering a change.

[DarrenPaulWright]

Fixed in 1.6.3