Exception in [PFUser currentUser].isDirty after sign up of anonymous user

[ako2009]

This code generates the exception "PFObject contains container item that isn't cached."
Something goes wrong after anonymous user signing up.

    [PFUser enableAutomaticUser];
    [PFUser currentUser][@"installations"] = @[ @"test" ];

    PFUser* user = [PFUser user];
    user.username = @"test@test.com";
    user.password = @"test";

    [user signUpInBackgroundWithBlock:^(BOOL succeeded, NSError* error) {
        if (succeeded) {

            // workaround
           // [PFUser currentUser][@"installations"] = [[PFUser currentUser][@"installations"] copy];

            if ([PFUser currentUser].isDirty) {  // the exception occurs here
                NSLog(@"User is dirty");
            }
        }
    }];

I tested it on iOS Parse SDK v1.8.5

[nlutsenko]

Hey @ako2009, thanks for the report! This sounds about right...
This is going to be fixed by #102, since we are not going to require caching for containers at that point.

In the meantime, as the ultimate workaround you can change your code to something like this:

    [PFUser enableAutomaticUser];

    PFUser *user = [PFUser currentUser];
    user[@"installations"] = @[ @"test" ];
    user.username = @"test@test.com";
    user.password = @"test";

    [user signUpInBackgroundWithBlock:^(BOOL succeeded, NSError* error) {
        if (succeeded) {

            // workaround
           // [PFUser currentUser][@"installations"] = [[PFUser currentUser][@"installations"] copy];

            if ([PFUser currentUser].isDirty) {  // the exception occurs here
                NSLog(@"User is dirty");
            }
        }
    }];

Let me know if this helps, but ultimately - I am going to close this down, since we have #102 as a fix :D