My Tamed Dog Attempts To Kills My Horse

My tamed wolves would not leave my horse alone until i sat them down or punched/hit another animal/mob. I had seen it says that has been fixed in snapshots but this problem continues. I have a photos to prove it. I would appreciate it if it were to be fixed. The first time I encountered this my horse was drowning and I punched the ice above and hit her and she died, and I believed the wolves had killed.