PermissionService.findTargetObjects returns all objects

[ChrisWorks]

Hello

I have a method "preferences" on my UserController, which actually only works against my Preferences model:

  preferences: function(req, res) {    
    Preferences.findOrCreate({user: req.session.userInfo.id}).then(function(preferences){
      if(!preferences) return res.serverError("error getting preferences");
      return res.ok(preferences);
    }).catch(function(err){ return res.serverError(err);});
  }

The sails-permissions RolePolicy seems to not like that combination. The RolePolicy will actually extract ALL objects in my User model to check wether my permission matches each object. After some debug statements this is what is written to the console:

silly: PermissionService -> findModelPermissions -> permissionCriteria: 
silly: {"model":8,"action":"read","or":[{"role":[2,5]},{"user":3}]}
silly: PermissionPolicy: 
silly: [{"criteria":[],"model":8,"role":2,"action":"read","relation":"owner","createdAt":"2017-08-17T11:12:44.344Z","updatedAt":"2017-08-17T11:12:44.344Z","id":120}]
silly: PermissionPolicy: 1 permissions grant GET on model User for Greenfield Bikes/Bjarne B

To this point the PermissionPolicy has gathered that the current user has READ on User model with Relation: Owner

Now comes the weird part:

silly: RolePolicy -> entry
silly: RolePolicy -> Cannot perform action [read] on foreign object: 

The RolePolicy calls the PermissionService.findTargetObjects(req) which returns ALL objects on the User model.

1. Why do the RolePolicy work on the User model, when it is the Preferences model that my UserController will access,

2. Why is the PermissionService.findTargetObjects(req) call needed? Returning all objects on the model seems crazy. What happens with performance if I have 100.000 entries in my model. And all this is before my code is even touching the model.

3. Am I using it all wrong?