While doing some analysis, I found a strange inconsistency.

The ServerSideAccountCreation
<https://meta.wikimedia.org/wiki/Schema:ServerSideAccountCreation> event
logs show a user with the ID *26048397* and the name *Dhava2nd* being
created on the English Wikipedia at 2015-08-20 01:38:57. (Those logs do *not
*record autocreations).

However, that user ID doesn't exist in `enwiki.users`. The user Dhava2nd does
exist <https://en.wikipedia.org/wiki/Special:Contributions/Dhava2nd>, but
with the user ID *26048409 *(twelve numbers later) and a registration date
of 2015-08-20 01:41:07 (two minutes later). Special:Log says that
<https://en.wikipedia.org/wiki/Special:Log/Dhava2nd> that the enwiki
account was autocreated, but the centralauth database says the enwiki
account was the initial creation, and that occurred at 2015-08-20 01:38:59.

In my cohort, this was the first user out of about 80,000 to have a problem
like this.

Does anyone know what's going on? Is this issue documented anywhere?
-- 
Neil P. Quinn <https://meta.wikimedia.org/wiki/User:Neil_P._Quinn-WMF>,
product analyst
Wikimedia Foundation
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