The message in MediaWiki:mwe-upwiz-source-ownwork-assert-any-license
is having this problem:
- The parameter can be both a user name and a real name (or possibly any nonsense that a wiki user typed)
- The message should support GENDER for the user name case.
There is no way to safely do this since a real name of one person may well be a username of another person. Simply using GENDER and accepting the case "user not found" as "unspecified gender" would not work. Since the upload wizard is likely meant to be a quite central piece being heavily used in Wikimedia Commons in the future, we need a workable solution.
There are at least these messages in Extension:
having the same problem:
It may be worth finding a common solution for them all.