Boarding parties question

[Alpha Kodiak]

I noticed something odd the other day with boarding parties and I'm wondering if the behaviour is a bug or not.

I built a boarding ship that had three boarding parties on it, along with shield depleting weapons. During an assault on an enemy world, I sent the boarding ship to capture three freighters, loaded with enemy population, that were cowering in a corner. The freighters had no security stations and no self-destruct devices.

I approached the first one, knocked out its shields, and boarded it. All went well, until I discovered that all three boarding party components on my ship had been destroyed. I was expecting only one of them to be destroyed.

I played around with some different configurations, and it always seems that when I capture a ship, all of my boarding party components are destroyed. That seems wrong to me, but I am wondering what others have experienced.