Xcode 9.2 UIDocumentBrowserViewController : Failed to create a url from bookmarkableString - ios

Question

Update: Xcode 9.3 has fixed it.
When creating UIDocument File in UIDocumentBrowserViewController
[default] [ERROR] Could not resolve bookmark. Error: Error Domain=NSFileProviderInternalErrorDomain Code=1 "The reader is not permitted to access the URL." UserInfo={NSLocalizedDescription=The reader is not permitted to access the URL.}
[DocumentManager] Failed to create a url from bookmarkableString (Error Domain=NSFileProviderInternalErrorDomain Code=1 "The reader is not permitted to access the URL." UserInfo={NSLocalizedDescription=The reader is not permitted to access the URL.})
Code work well in Xcode 9.1, But Failed in Xcode 9.2. almost the same code as wwdc 2017.
func documentBrowser(_ controller: UIDocumentBrowserViewController, didRequestDocumentCreationWithHandler importHandler: #escaping (URL?, UIDocumentBrowserViewController.ImportMode) -> Void) {
let newDocumentURL: URL? = R.file.templateDocument()
// Set the URL for the new document here. Optionally, you can present a template chooser before calling the importHandler.
// Make sure the importHandler is always called, even if the user cancels the creation request.
if newDocumentURL != nil {
importHandler(newDocumentURL, .copy)
} else {
importHandler(nil, .none)
}
}