Stone filter is order dependent

[neitsa]

From user ebonite on steam:

First, let me say "Thank you!" for this mod. It makes getting into a game so much quicker!

So I don't know if this is a bug or an oversight, but it appears that the Stone Type 
filtering process is rigidly stone order dependent.

What I have found is that selecting Granite and Marble as ON and Slate as MAYBE, [PL] will 
show me tiles that have Stone Types of:

Granite and Marble,
or Granite, Marble and Slate,

but not tiles with:

Granite, Slate and Marble,
Marble and Granite,
Marble, Granite and Slate,
Marble, Slate and Granite,
Slate, Marble and Granite,
or Slate, Granite, and Marble

I noticed when I missed a filtered tile and clicked on it's neighbor that had Marble, Granite and 
Slate as its Stone Types and wondered why it didn't come up in the filter.