Creating new task for reopen of T85700:
The following edit does not show a edit summary:
https://ru.wikipedia.org/w/index.php?title=Теперь_его_дозор_окончен&diff=70530965&oldid=70479606
Looking at the api: https://ru.wikipedia.org/w/api.php?action=query&prop=revisions&revids=70530965&format=xml
shows the text from message revreview-reject-summary-cur.
The creation of the revision needs a call of Language::truncate to be sure that mulitbyte characters get cuts not in the middle, resulting in missing comment (that is T95353)