Last modified: 2014-10-21 12:46:20 UTC
It seems the logging code for uploading has been rewritten about a month ago, as there appears to be a new "logentry-upload-overwrite" message. Since then, the message is hardcoded as an automatic edit summary upon uploading a new version of a file. See for example https://commons.wikimedia.org/w/index.php?diff=prev&oldid=133487898 It hardcoded the message in Dutch since I used Dutch as interface language on Commons. It used to be in English, which it should be since that is the site language. (Ideally though we probably need a dynamic edit summary for these cases, but that's outside the scope of this bug.) I didn't check whether the bug is also present for related messages (maybe "logentry-upload-revert" or so).
