Cloudkit数据库在启动应用程序商店之前被清除干净了吗?

I'm using Cloudkit with an app and plan to use the database to store and access strings and images. Before the app is launched from the App Store will the images still be accessible, or does the database get wiped clean? I know this is probably basic questions, but want reassurance before I put work into adding info to the database. I know there's 'development' to 'production' but want to make sure things aren't messed with in the transition.I'm using Cloudkit with an app and plan to use