For me, on an existing character when clicking "Adjust Attributes" there is a button that says 'Reset'. After clicking it I am free to re-distribute my stats. Are we sure what OP is saying is actually true?
The changes don't stick after creation. If you log out and back in, the stats are back to their original values. The edited values are only stored client-side.
That said, I was able to get cosmetic changes to stick post hoc - I don't remember how I did it...
I was some combination of editing, switching chars, logging out or in after editing, or maybe canceling? I'll have to mess around with it again tonight and see if I can reproduce it and file a bug on it.