A way for SAM to ignore balloons?

i have prevented damage to players and balloons from SAM sites but it drains SAM ammo. Is there a way to just ignore balloons altogether?

See the update notes

@Jaxx5311 did you find a way?

a recent update broke the flag, and is fixed in the next update, but as I said this information is in the update notes

{
  "name": "samsites",
  "members": "sam_site_turret_deployed",
  "exclusions": "sam_static, HotAirBalloon"
},
​​
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