I have heard from several people and even seen postings from level 2 judges saying that Scion can copy 2 dragons in a turn, leaving you the ability to do something like moltensteel pump+skittles

however the 2006 errata reads:
9/25/2006 Removing the other Dragon card from your graveyard has no effect on Scion of the Ur-Dragon.
9/25/2006 When Scion of the Ur-Dragon becomes a copy of another Dragon, it loses its copy ability for the rest of the turn.


So which is it? Can Scion copy 2 dragons in a turn or no?