A moment ago, I attempted to follow a reference to Didache 11:3 in a commentary (WBC 33B, 675). Instead of opening up the Didache itself, it opened up the Hermenia commentary on the Didache at the corresponding reference.
In order to test whether it was a tagging error in WBC, I clicked on the verse number that introduces the commentary section (usually this leads to the reference commented upon). Sadly, it only leads back to the same place in Hermeneia.
I was pretty sure I had the Didache in my library and checked. I have for instance, Schaff's The Teaching of the Twelve Apostles. Both Hermeneia and Schaff indicate the verse same in the reference field (Didache 11.3).
Not sure what's going on, but the reference should lead to the primary text rather than to secondary resources that comment on it.