During a recent engagement, Marius Bergen focused on enhancing the stability of the hallowelt/mediawiki repository by addressing a bug in the Parser’s table of contents cleanup logic. He identified and resolved a premature loop exit in the PHP code, ensuring that all child nodes, including empty tags or those without children, are now processed correctly. To prevent regressions, he introduced targeted test coverage that verifies the improved behavior. His work centered on bug fixing and code refactoring, resulting in more robust TOC parsing for edge cases. This contribution improved maintainability and reliability for future development and user experience.