findOrCreate(id) doesn't create

[CodeMonkeySteve]

I have an Organization model which has many Person models, where Person defines organization_id:

class @Organization extends Backbone.RelationalModel
  relations: [
    relatedModel: 'Person'
    type: Backbone.HasMany
    key: 'people'
    keyDestination: 'people_attributes'
    keySource: 'people'
    parse: true
    reverseRelation:
      key: 'organization'
      keySource: 'organization_id'
  ]

But if I instantiate a Person before the related Organization, the Organization model is never created. E.g.:

new Person({organization_id: 42}).get('organization') == null

I've tracked this down to the fact that findOrCreate returns null when an id is passed but the model does not (yet) exist in the store. I would expect it to create a sparse model (i.e. just an id), suitable for fetching.

I've tried modifying findOrCreate to add this behavior, but apparently lots of things expect the existing behavior (i.e. all the tests broke).

[CodeMonkeySteve]

Of course, 4 minutes after I created this I realized that it's a duplicate of #399.