@labs.subscribers in Ghost v3

Seems like {{#if @labs.subscribers}} returns true on v3 if the feature was enabled on v2.

{{#if @labs.subscribers}}
  <div class="subscribe">
    {{subscribe_form placeholder="Your email address"}}
    <p>Get the latest news delivered right to your inbox.</p>

For example on this example, the message is displayed, but the form isn’t.
What is the correct way to disable subscribers features by default on v3 while still keeping it on previous versions?

Ooops you found a :bug:, we’ll get that sorted out ASAP.