[RC1] Still grappled by slave, after killing the slavemaster

[greycat]

This bug's been in for a while. In the Hidden Compound, if you're grappled by a slave and you kill the slave's master, the slave turns friendly on the next turn, but never releases the grapple effect. Even if the slave moves away, you still have to wait for the effect to time out, or remove it with an infusion.