I think this is intentional. In the console edition, the Ender Dragon hovers above the portal and shoots ender acid. But since you were in creative, he wasn't hostile towards you. Try fighting it in survival and see what happens. If he still does nothing, I don't know what to say.
I think the SkullOwner tag was removed because of a security issue or something. I don't remember exactly.
I did search for similar bugs, and nothing came up. I can see how the two bugs are the same, but in my opinion, it was very unlikely for me to come across this bug while searching.
@Lucas Two things: I said the affected version was 1.8.2-pre1, and also I'm wearing a "jacket" layer (introduced in 1.8) in the screenshot. So no, I am clearly not playing in 1.7.10 or earlier.
Okay, now I'm thinking the skin studio is possibly bugged, but I'm still not sure. I guess all I can do is wait for 1.8.2-pre2 (or just 1.8.2) and hope this gets fixed for me.
@Sonic I used Minecraft Skin Studio Lite, the official one.
Just because YOU can't reproduce it, doesn't mean it is resolved. I am still having this problem.
So what do I do after I click "Open Game Dir"?