title: An App ID Identifier is not available xCode 8.3.2
body: <p>It seems like after updating the xCode(8.3.2), when trying to enable AppGroup to share data between an App and my widget, I get an error:"An App ID with Identitifier 'il.co.xxxx.xxx' is not available.Please enter a differnt string". I've been successfully uploading my app with AppGroup until now. Is it bug in xCode? Do I need now to change my Bundle ID in app to something(com.il.xxx.xxx) and create new provision profiles in order to upload my app?
  Thanks in advance.</p>