I have an app with a 14 day free trial (https://apps.shopify.com/live-cart). If a merchant installs the app (app install, recurring app charge activation), 3 days later uninstalls the app (recurring app charge cancellation), and re-installs the app at some later point (app install, recurring app charge activation again) - does shopify correctly keep track that they used 3 days of their free trial and will bill them in 11 days? Or do I need to write code to handle that case?