I'm seeing AI factions of all races spam these units called Pilgrims in some games. Pilgrims aka Unit_Magic_Light_Ironeer_AI2 are supposed to be Ironeer only but they are missing the prereq tags for that.
<Prereq>
<Type>Race</Type>
<Attribute>Race_Type_Ironeers</Attribute>
</Prereq>
Even though the unittype has <IsStartingUnitType>1</IsStartingUnitType> and is only present for Ironeer race it can still be built by other AIs.
