diff does not return 'path' key

[Mark Rodighiero]

Documentation says:
`v 0.2.0 and above The code snippet above would result in the following structure describing the differences:

[ { kind: 'E',
path: [ 'name' ],
lhs: 'my object',
rhs: 'updated object' },
...Butpath` key is actually not present in the result.

[Mark Rodighiero]

Apparently, deep-diff returns a 'D' type and path element if rhs is {}.
But it returns an 'E" type and no path element if rhs is null.
I think rhs is null should also return a 'D' type with path element.
If lhs is {} d-d returns 'N' type with path element.
But, if lhs is null, d-d also returns an 'E' type with no path element. Should be 'N' type with path.