Based upon feedback from a Tester it sounds like ABILITYLIST in conjunction with TYPE is only taking one not both.
Uncomfirmed at this time.
Please provide an example (can just be a comment does not need to be committed) and the expected and actual behaviour please.
It was a comment from one of my testers
Code would be
ABILITYCATEGORY:Test Feat
CATEGORY:FEAT
TYPE:Combat
ABILITYLIST:Alertness|Acrobatics|Endurance
DISPLAYLOCATION:Feats
EDITABLE:YES
EDITPOOL:YES
In Theory you should see ALL combat feats plus the ones in the abilitylist.
Frankly, I think I misunderstood the tester, but I've been swamped at work and haven't had a chance to test the behavior myself. If you don't mind giving a quick test - just plop that into an abilitycategory load it up and give it a single point. (You might not even need the point to see the feats).
I tested this, and everything appears to be working correctly. Sorry for the false report.