File path doesn't work with [user-id] but work with [user-name]

Hi,
I can't undesrtand this.

Examaple.

My data:

CCK field: File
Widget type: Image
Uploaded image: dp_logo_80x50.png

Settings:

File path: [user-name]
File name: logo.png

Results:

Image URL after upload : /sites/default/files/imagefield_thumbs/andrey/logo.png
That's OK.

Now change [user-name] to [user-id] and get /sites/default/files/imagefield_thumbs/13/logo.png/dp_logo_80x50.png
That's wrong.
It must be /sites/default/files/imagefield_thumbs/13/logo.png