AI ignores Prerequisite.Negative tag

[FS-21]

Ares version: 0.1.1169
O.S.: Windows 7 Professional, 64 bits

I made 4 Super Weapons for one side but I wanted to force to choose 2 SW & forget the other 2 SW using Prerequisite.Negative tag, this code is how it looks:

;;;;; Group 1 of SW
[ngkanepyra]
Prerequisite=TSNACNST,TSNATECH
Prerequisite.Negative=TSNAMISL,TSNAWAST
SuperWeapon=TiberiumShowerSpecial
SuperWeapon2=EMPulseSpecial
TechLevel=10
AIBuildThis=yes
...

;;;;; Group 2 of SW
[TSNAMISL]
Prerequisite=TSNACNST,TSNATECH
Prerequisite.Negative=ngkanepyra
SuperWeapon=TSMultiSpecial
SuperWeapon2=TSChemicalSpecial ; <- AuxBuilding=TSNAWAST
TechLevel=10
AIBuildThis=yes
...

[TSNAWAST]
Prerequisite=TSNAMISL
Prerequisite.Negative=ngkanepyra
TechLevel=10
AIBuildThis=yes
...

When [ngkanepyra] building is built [TSNAMISL] & [TSNAWAST] buildings are unbuildable and when [TSNAMISL] &/or [TSNAWAST] is built [ngkanepyra] is unbuildable.
The problem is that AI will ignore Prerequisite.Negative tag and will build the 3 buildings, having all the 4 Super Weapons.

[DCoder DCoder (dcoder1337)]

I'm pretty sure there are other prerequisite checks the AI happily bypasses in its base planning. There's an experimental branch ft-ai-base-planning to improve that, but it's not scheduled to be included in 0.2 .