The "Main menu" block is originally designed to be shown on the front page, and it shows the contents of a (hidden) section of the front page "course". However, there are situations where it can be displayed in other contexts as well; e.g., the block can be set to be visible "throughout the entire site" in which case it is displayed, in particular, in individual courses. However, in this situation it doesn't display the same contents as on the front page; rather it displays the intro section of the current course, which is confusing.

Steps to reproduce:

• Go to the front page and turn editing on
• Add the "Main menu" block and set "Page contexts" to "Display throughout the entire site"
• Add a resource to the main menu block (e.g., a label)
• Go to a course (create one if needed)
• EXPECTED: Main menu block shows, and contains the same content as on the front page
• ACTUAL: Main menu block shows, and contains the first section of the current course (in an empty course, typically the "News forum")