From b2evolution manual

This manual page is outdated. NEW PAGE: Single Post Pages SEO in b2evolution v5+.

[edit] Make canonical

If a particular post is requested with a twisted URL, do you want to automatically redirect to the right URL?

It is useful if you change your URL scheme.

This is also overly useful if you move posts or categories from one blog to another.

If you move a post and this is disabled, there are 2 possible situations:

• Either the post is no longer part of the requested blog, and you get a "Sorry, nothing to display"
• Or the post is still cross categorized into the requested blog and it will be displayed in that (somewhat wrong) blog template.