MVStore bugfixes

git-svn-id: http://h2database.googlecode.com/svn/trunk@5192 e6896862-9d19-0410-bfb3-e9fa5d50e656
MVStore bugfixes

git-svn-id: http://h2database.googlecode.com/svn/trunk@5193 e6896862-9d19-0410-bfb3-e9fa5d50e656