For the 2012–2013 Influenza season, the recommendations for the influenza trivalent vaccine included A/California/7/2009 (H1N1)pdm09-like, A/Victoria/361/2011 (H3N2)-like and B/Wisconsin/1/2010-like (from the B/Yamagata lineage) viruses. Throughout the season, 99% of both the A(H1N1)pdm09 and A(H3N2) viruses characterized have been A/California/7/2009 (H1N1)pdm09-like and A/Victoria/361/2011 (H3N2)-like, suggesting a good match with the current seasonal vaccine.
A significant number of Victoria lineage viruses were also reported accounting for up to 30% of the B viruses in some countries.
The answer must be: the vaccine worked but only partially.
Source: WHO (pdf here)