Observed on desktop site https://mediawiki.org.
Steps to reproduce
- Somehow get yourself/your IP blocked on a wiki with StructuredDiscussions
- Now write a to reply to any thread in namespace where it's enabled.
- When you attempt to save; observe a block message saying you cannot save
Expected result
Wikitext in the block message should be parsed. [[Project:EX|Example]] should show as a wikilink "Example"
Actual result
Wikitext in the block message is not parsed. [[Project:EX|Example]] is rendered literally as is.