fix compile error on vector scalar multiplication when scalar type differs of vector scalar type and the scalar was lhs
fix compile error on vector scalar multiplication when scalar type differs of vector scalar type and the scalar was lhs

closes #2367

git-svn-id: e0b5bbb11d0e9fdbbfcabba14dc32ad5d6b235bd@1291 fdac6126-5c0c-442c-9429-916003d36597

svn2github/OpenMesh4,svn2github/OpenMesh2,svn2github/OpenMesh2,svn2github/OpenMesh2,svn2github/OpenMesh2,svn2github/OpenMesh2,svn2github/OpenMesh4,svn2github/OpenMesh4,svn2github/OpenMesh4,svn2github/OpenMesh4