List active subscriptions in Cratejoy customer account page

      <ul class="list-group">
        <li class="list-group-item"><h4>Your Subscription(s)</h4></li>
        
        {% set exists = [] %}

        {% for sub in customer.subscriptions %}
        {% if sub.store_id == store.id %}
		
          {# This makes sure we know if we found a sub tied to the store #}
          {% do exists.append(1) %}

          <li class="list-group-item">

            {% if sub.cart_products %}
              <div><strong>{{ sub.cart_products[0].instance.product.name }}</strong></div>

              {% if sub.cart_products[0].instance.variants|length == 2 %}
                <div>{{ sub.cart_products[0].instance.variants[0].variant_value.value }}</div>
                <div>{{ sub.cart_products[0].instance.variants[1].variant_value.value }}</div>
              {% endif %}

              <div>{{ sub.cart_products[0].price | currency }}</div>
            {% endif %}

            <div>{{ sub.term.name }}</div>

            <div>Status: <strong>{{ sub.status_pretty_string }}</strong></div>
          </li>
        
        {% endif %}
        {% endfor %}
        
        {% if not exists %}
          <li class="list-group-item">No active subscriptions</li>
        {% endif %}
      </ul>

When a subscriber updates their subscription, cart_products retains the old Subscription objects. Is there a way to see which products they changed it to?