Compare the edit summary in https://nl.wikipedia.org/w/index.php?diff=55713383&oldid=55713375 against the edit summary in https://nl.wikipedia.org/w/index.php?diff=prev&oldid=55696385
Generally, on a language-specific content wiki (e.g., enwiki or nlwiki), I'd expect the edit summary to use that wiki's language. At a multi-lingual wiki (e.g., Meta-Wiki or mw.org), it might be nice to do it the other way.