Core/DB layer: Change functionality in previous memoryleak-fix (Patch by raczman)

src/server/shared/Database/PreparedStatement.cpp

@@ -201,8 +201,11 @@ m_bind(NULL)
 MySQLPreparedStatement::~MySQLPreparedStatement()
 {
     ClearParameters();
-    delete[] m_Mstmt->bind->length;
-    delete[] m_Mstmt->bind->is_null;
+    if(m_Mstmt->bind_result_done)
+      {
+	delete[] m_Mstmt->bind->length;
+	delete[] m_Mstmt->bind->is_null;
+      }
     mysql_stmt_close(m_Mstmt);
     delete[] m_bind;
 }