area attack for AA units targets ground units and blocks its command queue

[mojjj]

when using the circle attack, AA units also queue ground units, which should not be the case.

example from http://zero-k.info/Battles/Detail/866313 (somewhere lategame)

1. screamer on holdfire (prevent shooting costly rockets on drones)
2. a group of brawlers enters the range. screamer waits silently to give enemy confidence it is out of rockets
3. area attack the brawlers with some ground units nearby. circle includes brawlers and ground units
4. an attack command queue for multiple units is created, including ground units. the result, as the first unit is a bandit, results in the screamer NOT shooting, as AA does not target ground. other issued commands afetr the first command are not executed as hey are waiting for the first command to be finished.

proposal 1: ground units are NOT queued
proposal 2: ground units are queued (while being radar dot) but the command is deleted once the units are visible to the player (not giving additional intel on radar dots)