I can't open the activity log after adding note. Sometimes this happens only after moderating and adding a note to 2 feedbacks.
happened at:
https://de.wikipedia.org/wiki/Spezial:Artikelr%C3%BCckmeldungen%20v5
http://en.wikipedia.beta.wmflabs.org/wiki/Special:ArticleFeedbackv5
Version: master
Severity: normal