The Feature "As credited" works just fine in my database, but it looks like this in the contribution window:

T. Samoilova [T. Samoilova]
A. Batalov [A. Batalov]
V. Merkuryev [V. Merkuryev]

As you can see, same name in both of the fields. But the names in my database are "Tatyana Samojlova", "Aleksey Batalov" and "Vasili Merkuryev" and the "credited as" feature works just fine.

The same problem occurs in the online database in the "evaluating" window for new/updated contributions.