[1.32b] Spotter Drones cannot be used on independent mech. artillery

[makat]

This can be tested in the attached save file. If you select "Spotter Drones" stratagem, and switch to "targets" tab, the list of valid units will show a bunch of militia units and OHQ units, but not any independent units, which means it cannot be played on an independent mechanized artillery formation, which would be a prime target for it. The issue is not general with unit stratagems, the others I checked can be used on independent units normally.

[Vic]

You are right... the card targetting limit script is wrong. fixing for next patch!

big thx for reporting!