VM 2.6 Can't Assign Manufacture to Multiple Categories

[chiefbobo]

My client may have found a bug in VM2.6.  Their store has many manufactures who offer products across several different manufacture categories.  Regarding the Manufacture Category menu, the VM documentation says, "or leave blank to be available to all categories".

But you can't leave this field (drop-down) blank.  Even if you don't choose anything from the Manufacture Category menu, it will default to the first category in the list.  How can we assign a manufacture to multiple categories?  Thanks for your help.

Randy