added initialization after resize

git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@6836 2fb0f335-1f38-0410-981e-8018bf24f1b0

dumux/decoupled/2p/variableclass2p.hh

@@ -278,6 +278,7 @@ public:
          fracFlowFunc_[i].resize(size);
          }
          velocitySecondPhase_.resize(size);
+         velocitySecondPhase_ = Dune::FieldVector<Scalar, dim>(0);
          saturation_.resize(size);
          capillaryPressure_.resize(size);
          volumecorrection_.resize(size);