Error when use embeds_one relation

[rjurado01]

When you create a object with embeds_one relation object keywords are not saved.

I have write a test with the error: rjurado01@b81db46

The problem is that when you uses this syntax parent['child.property'] before it is persisted, mongoid doesn't return anything:

parent = Parent.new(child: Child.new(name: 'name'))
parent['child.new'] # this returns nil
parent.save
parent['child.new'] # this returns 'name'

And this gem uses this syntax in this line: https://github.com/mongoid/mongoid_search/blob/master/lib/mongoid_search/util.rb#L25