[BUG] Incorrect blog post slug routing

[gabalafou]

From #653 (review):

Something's not right.

The preview build of the blog post at this slug metadsl is actually showing the blog post at slug metadsl-talk.

Probably a bug in the blog post slug routing machinery.

I'm creating this issue for tracking—just in case there's a bug in the routing code

[bskinn]

Do we have any other blog slugs that do not contain a hyphen?

I wonder if the lack of a hyphen is triggering a code path somewhere.