Lore potions from the gnome merchant don't identify whatever is in your pack. Bought two potions, seemed to add a small lore bonus but I didn't get a good look at the PC skills table to confirm. Most things most things remained unidentified.
Quite possibly not a bug, WM. They ID a number of items equivalent to the Caster Level, which on potions is 3.
SURPRISE! It's a mechanics change.
Thank you, I had thought I heard mort say it ID'd everything.