Background: MediaWiki is open source software used to create wikis; it was developed for and is currently used by Wikipedia. I am using version 1.15.4.
I’ve spent a lot of time searching without success for a way to insert a multi-line pre-formatted block of text within an ordered or unordered list in MediaWiki using wiki markup * and # syntax. Today I finally figured out this can be done using either (Line Feed) or (Carriage Return). I haven’t tested across platforms or browsers, but here is an example: