Google Code-in

This task is about the Newsletter extension.

This happened possibly because the author was copying in ContentHandler things from the MassMessage extension.

Steps to reproduce:

Create a new newsletter using Special:CreateNewsletter

Using edit, add in a new publisher

View-history using the top right menu, and see that message key 'massmessage-diff-publishersheader' shows up, which is not defined.

Please change it to something like 'newsletter-diff-publishersheader' and add the entry to the files "i18n/en.json" and "qqq.json" for translation.