The login function response is not returning "url" property of the file fields

[leonardojobim]

It looks that is lacking url property for file fields in the json response of the login function.

More details can be viewed here:
parse-community/Parse-SDK-iOS-OSX#812

[leonardojobim]

The same issue was noticed in Facebook Login (using Swift version of ParseFacebookUtilsV4. PFFacebookUtils.logInInBackgroundWithReadPermissions()).

I am using PFUser.fetchInBackgroundWithBlock() just after the login as a quick fix for this bug.