GetFolderitem and FolderItem.PathTypeNative

In my program following is coded:

Dim f As FolderItem = GetFolderItem("", FolderItem.PathTypeNative)

When I run the program f is always Nil.
I changed the code to:

Dim f As FolderItem = GetFolderItem("")

Now f is the current directory.
I would expect that using FolderItem.PathTypeNative for the current directory would give me the native path of that directory.

Is this a known bug?

PathTypeNative expects an absolute path. You’re just giving it a hint as to the format of the path in the first param.

My mistake.
FolderItem.PathTypeNative is used to indicate how the path is passed and not to indicate how the path is returned.

RE : GetFolderItem("", FolderItem.PathTypeNative)
“” is a relative path which you cannot use with PathTypeNative