bugs fixed concerning group creation

SVN: 11183

dbmigration/source/java/ch/systemsx/cisd/dbmigration/DBMigrationEngine.java

@@ -131,6 +131,7 @@ public final class DBMigrationEngine
             }
         } else if (version.compareTo(databaseVersion) > 0)
         {
+            adminDAO.createGroups();
             if (operationLog.isInfoEnabled())
             {
                 final String databaseName = adminDAO.getDatabaseName();