Arelith

I have a svirfneblin totem druid that has a base 19 Wisdom. When in totem form, I cannot see the level 8 spells in my spellbook (they stop at level 7) and my base Wisdom is 17. It appears that when in totem shape, I lose the racial +2 WIS. I also notice my Charisma increases by 4, which again is a racial thing.

Not sure if this is a fixable bug, but reporting nonetheless.

This is not a bug. When you take totem form, your stats will modify to the base stats of your totem form. Your racial bias is when you are the Svirfneblin, not when you are your totem.

Totem stats are physical (STR, DEX, CON). I am talking about WIS. You keep your WIS, INT, and CHA stats when you change form.

NWN actually changes your internal race when you polymorph. This causes characters with altered mental stats to lose those mental stats. This is a NWN thing, unfortunately.