Fixed bug when opening another database file.

core/context.cpp

@@ -70,6 +70,7 @@ void Context::openDb(const QString &path)
 {
     if (m_db != NULL) {
         delete m_db;
+        m_solved.clear();
         m_dbOpened = false;
     }
 
@@ -177,6 +178,7 @@ void Context::createSchema(IPlugin *plugin, const QSqlDatabase &db, const QMap<Q
             if (!schemaMap.contains(plugin->pluginId()) || i >= ver)
             {
                 QString sql = plugin->schemas()[i];
+                sql = sql.trimmed();
                 QSqlQuery q(db);
 
                 QStringList sqlList = sql.split(";");