Can't poison drinks

[I can has fun?]

When I tried to put some nasty in a bottle, I got this message:

[Poison] ISSUE: Using poison items to poison things in your inventory doesn't properly work yet.

This happened with both Deathblade and Nitharit, I haven't tried anything else.

[Mort]

You have to drop the item on the ground, and then use it on it.

[I can has fun?]

Thanks.