fix bug in svd solve reported on forum, was apparently assuming square matrix, not sure how the unit test could work.

Eigen/src/SVD/SVD.h

diff --git a/Eigen/src/SVD/SVD.h b/Eigen/src/SVD/SVD.h
index da01cf3..9927225 100644
--- a/Eigen/src/SVD/SVD.h
+++ b/Eigen/src/SVD/SVD.h
@@ -426,8 +426,11 @@
       else
         aux.coeffRef(i) /= si;
     }
-
-    result->col(j) = m_matV * aux;
+    const int cols = m_matV.rows();
+    const int minsize = std::min(rows,cols);
+    result->col(j).start(minsize) = aux.start(minsize);
+    if(cols>rows) result->col(j).end(cols-minsize).setZero();
+    result->col(j) = m_matV * result->col(j);
   }
   return true;
 }