dog doesn't want to get up

My dog was sitting for a while, and now when I click on him he doesn't want to get up. I tried moving him, feeding him and even hitting him but nothing helps. It happened on my other world too. Now I'm afraid to command my other dogs to sit because I don't want it to happened again.

Please do something with that bug, it's happening for a while, and I was waiting on some update that will fix it, but now I see that nothing like that is coming, and I just have to report it. 

I've seen that it was reported a while ago by someone, but it's still an open issue.