ios - iOS 15 - Xcode 13-RC 警告: -[NSKeyedUnarchiver validateAllowedClass:forKey:]

Question

新しい Xcode 13-RC をインストールしたところ、プロジェクトでコンソールに次の警告が表示されました。

2021-09-15 17:30:06.305218+0100 MYProject[511:30187] [general] *** -[NSKeyedUnarchiver validateAllowedClass:forKey:] allowed unarchiving safe plist type ''NSString' (0x1f6902270) [/System/Library/Frameworks/Foundation.framework]' for key 'NS.keys', even though it was not explicitly included in the client allowed classes set: '{(
    "'NSDate' (0x1f68f7640) [/System/Library/Frameworks/CoreFoundation.framework]",
    "'NSDictionary' (0x1f68f77a8) [/System/Library/Frameworks/CoreFoundation.framework]"
)}'. This will be disallowed in the future.

それが何か知っている人はいますか？