Notes on reproducing association bug

gistfile1.coffee

class Card extends Serenade.Model
  @localStorage = true
  @property 'title', serialize: true

class CardSet extends Serenade.Model
  @localStorage = true
  @hasMany 'cards', as: (-> Card), constructor: Card, serializeIds: true

# Create one card, and one card set, and save them to the database.
the_set = new CardSet(id: 1)
the_set.save()

card = new Card(id: 1, title: 'hello')
card.save()

# Make a new CardSet (loaded from the database).
new_set = CardSet.find(1)

# This next line of code only updates the CardSet's list of cardIds if it gets
# run in the same "page load" as the CardSet was created in.
#
# To reproduce the problem, call localStorage.clear(), comment out the
# following line, and load a page that runs this code. You should see "0" in
# the console. Uncomment it and reload the page again, and you ought to see "1"
# in the console. You don't, you see "0". For some reason, cardIds isn't
# getting updated.
#
new_set.get('cards').push(card)

console.log CardSet.find(1).get('cards').length