explicitly disable mvstore when not using it

otherwise we use it for tests where we actually want pagestore

h2/src/test/org/h2/test/TestBase.java

@@ -244,6 +244,8 @@ public abstract class TestBase {
             if (config.mvStore) {
                 name = addOption(name, "MV_STORE", "true");
                 // name = addOption(name, "MVCC", "true");
+            } else {
+                name = addOption(name, "MV_STORE", "false");
             }
             return name;
         }