Carrion Golem of Scavenging consuming spectre

I'm not sure if it's a bug, but it definitely bothers me a lot and shouldn't be designed as this.
I'm using a Summon carrion golem of scavenging with raise spectre. I know that the carrion golem will consume corpse to make an empowered AOE attack, but it also just consumes corpse randomly in hideout as long as there are corpses.
When I remove raise spectre gem, my spectres become spectre corpses and will be immediately consumed by the carrion golems. Some of the spectre are quite expensive, and if they get consumed, it becomes a fast easy currency lost. I've lost more than 30 divines though this way, and there should be some error-proofing mechanics on it.
The auto-consume spell of summon carrion golem of scavenging should be disabled in hideout.
Main lost: perfect forest tiger, perfect warlord. (twice)