When a document has a hash field, accessing it via [] and updating a property does not cause changed? to return true. I've been able to reproduce this error, but unable to discover a solution so far.

To reproduce, place these tests in changeable_spec.rb

The first one should pass, and the second should fail reproducing the error described above.

context "when a subfield is changed" do

  let(:person) do
    Person.create(map: { name: "value" })
  end

  it "returns true" do
    person.map[:name] = "Another Person"
    expect(person).to be_changed
  end

  it "returns true if accessed via []" do
    person[:map][:name] = "The Third Person"
    expect(person).to be_changed
  end
end