There is no way the State information on the W-2 is correct.  While there are occasions where the State and Federal won't match (the State taxes something Federal does not, or does not tax something the Federal does tax), they should be fairly close.  It is obvious the company is double-reporting some of the income for the States.  They need to correct that.  If they say they correctly apportioned it, tell them to SHOW you how it was apportioned; then they will realize their mistake.

It seems like the client is now a resident of Georgia, so I assume Georgia wants it filed it as a part-year Resident.