[1.0.4]Killed by curing Corrosive Worm

[Parcae2]

The order of events:

1. A ruin banshee infects me with Corrosive Worm.
2. I kill the banshee but am at low health.
3. I summon my Stone Warden summons.
4. I use Mergeback to heal the corrosive worm.
5. I am hit by a whole bunch of acid damage attributed to the corrosive worm, and die.

Very odd and frustrating.