Fix 3 todos in MediaWiki core
completed by: Robert Hönig
mentors: Nemo_bis
A TODO is a reminder stored in a code comment. Do 3!
- Pick 3 todos from the list at https://doc.wikimedia.org/mediawiki-core/master/php/html/todo.html (each box is one todo, the header links the code file).
- Understand them and if necessary edit the todo itself to clarify for future fixers.
- Do them!