Last modified: 2012-05-09 11:52:23 UTC
Special:NotifyTranslators uses the message translationnotifications-languages-to-notify-label, being "Which languages to notify (comma-separated codes)" in English. When you enter nothing there, all languages are notified. The message should be changed to reflect this - e.g. to "Which languages to notify (comma-separated codes) - leave blank to select all".
Thanks for the report. Patch submitted in https://gerrit.wikimedia.org/r/#/c/7039/ .
Merged.