https://meta.wikimedia.org/wiki/Help:Edit_summary - there is a limit on the symbols in the description
in the description written in English letters with the English title of the article in the en-wiki fit many words
but in other languages, such as Russian, there seems to be not in the quantity of characters, and that the characters of another alphabet weigh more bytes.
This can be seen in the journal
This can be seen in the page history
user name(in other language) + translatewiki locallized words(in other language) + page name before(in other language) + page name after(in other language) - and for full summary(in other language) there is no place
need a way to be visible from the history a large enough piece of a comment or a link to the full view