[OSM-dev] historical user names in full history dump

[Stephan Knauss]

I noticed that in the full history dump the user names associated with a 
specific version does not match with the username which was active at 
that time.

So a user with name "A" doing an edit in 2012 and then changing the 
username to "B" in 2014 is now listed with "B" for all edits, even those 
done in 2012 as "A".

Is this intentional or just happened because nobody thought about it 
when creating the dump?
To reflect the actual history, I would have expected to see historical 
user names as well. History query of OSM API returns only current 
username as well.
As we have already a unique reference -the uid- why is the name changed 
in history and dump?

I have documented the current situation in the wiki so others won't 
wonder. Still interested: What would have been the intended behavior?

Slightly related to this:
https://github.com/Zverik/whosthat
https://trac.openstreetmap.org/ticket/4671
https://josm.openstreetmap.de/ticket/8251

Stephan