Last modified: 2012-12-27 00:40:53 UTC
If a Flickr user's real name isn't specified, we should fall back to their Flickr alias. Here's an example of a file that had no author set... https://commons.wikimedia.org/wiki/File:Cheesecake_au_caramel_au_beurre_sal%C3%A9_et_sp%C3%A9culoos.jpg ...from this Flickr photo... https://secure.flickr.com/photos/jeanfred/6819570781/
Note that Flickr uploading on Commons is currently disabled pending this bug being fixed (and maybe a few others while we're at it).
Fixed in https://gerrit.wikimedia.org/r/#/c/34685/