...at least until the NEXT revision. IIRC it took THREE revisions to finally settle on the lie that was quoted for Q4 2011.
That’s standard procedure. The initial is a “flash” view which is filled with estimates. There are always two additional revisions. They already have the date for the next one. From the BEA press release:
Next release — March 28, 2013 at 8:30 A.M. EDT for:
Gross Domestic Product: Fourth Quarter and Annual 2012 (Third Estimate)