[udev] attributes aren't replaced in the run command

Steps to reproduce :
- Create the file /etc/udev/rules.d/80-usb_modeswitch.rules :
SYSFS{idVendor}=="19d2", SYSFS{idProduct}=="2000", RUN+="/usr/sbin/usb_modeswitch.sh '%b/%k/%s{idVendor}/%s{idProduct}/%s{manufacturer}/%s{product}/%s{serial}'"
- Create the file /usr/sbin/usb_modeswitch.sh :
echo "/usr/sbin/usb_modeswitch.tcl $1" > /tmp/usb_modeswitch.log
- Restart udev : $ /etc/init.d/udev restart
- Insert the GSM usb dongle (19d2:2000)
-> Read /tmp/usb_modeswitch.log to get the attributes replaced by udev.
It appears that :
- %k is replace by something non empty (1-1:1.0 in my case)
- %b and all attributes are replace by a empty string.

Expected results :
- all attributes should be replaced by the correct valued that can be found with the following command (in my case) : $ udevadm info -a -p /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-1

System :
- karmic alpha 5 (laptop with udev 146-1) or final Jaunty (desktop computer with udev 141-1.2)