Confusing preview behavior #1821

Describe the bug

I'm attempting to use previewPermissionStatuses to customize previews for different scenarios but it looks like PreviewMultiplePermissionsState doesn't actually adapt to a change in permissions.

A quick look at the code suggests that only PreviewPermissionsState.permissions is an accurate reflection making properties like shouldShowRationale and code to detect partial permissions like the following unavailable:

locationPermissionsState.permissions.size == locationPermissionsState.revokedPermissions.size

It appears that in a preview shouldShowRationale always returns false and the partial permission code above will always be true because the revoked permissions list is always empty.