Nested fields shouldn't be required in .select if parent is included

[paultranvan]

Assume this query:

Q('io.cozy.test')
.where({
  'metadata.author': 'Cozy'
})
.select(['metadata'])

As metadata.author appears in the selector but not in the fields, this will trigger an error from here.
But since we ask for the whole metadata object, including the 'metadata.author, this should works fine.