^Nope. He's seen with it during Morrison's Batman and Robin run.
I actually read up on this.
Apparently DC did retcon the red hair away post crisis. Morrison brought it back (not surprising since a lot of things that were eliminated have since been brought back including young Damian).
However subsequent writers didn't get the memo and have since gone back to it being black.
As with everythig at DC...its fits until it don't.