Zombie Turning on Master

Hi, I recently raised this zombie and walked back into a room where my golem was already fighting this fire giant and the below happened: ******************************************* <87%hp 59%m 75%mv 7500tnl> A Road [Exits: north east] A skeletal warrior stands here awaiting its master's commands. A fire giant stands here, arms crossed, scanning the crowds. A zombie of a jaette man-at-arms has arrived. <87%hp 59%m 75%mv 7500tnl> A bone golem's pound mauls the fire-giant anti-paladin. A zombie of a jaette man-at-arms stops following you. A zombie of a jaette man-at-arms's punch MUTILATES you! A zombie of a jaette man-at-arms's punch misses you. ******************************************* Is it a bug that my zombie seemingly assisted the fire giant and turned on me? Thanks.