Localized quotes are… weird: A discussion about the appearance of modified quotes in localized languages. ganncamp shared an instance of their post being translated into Russian, which they found odd. leonardo explained that this is likely due to browser-based auto-translation and isn’t something that can be controlled. Falco suggested that a CSS class quote-modified could be used to style modified quotes differently, allowing users to distinguish between original and modified quotes. Stephen confirmed the existence of the quote-modified class, and ganncamp expressed a preference for highlighting quote modifications.
You’re right, this is very likely browser based auto translation, which modifies the DOM and thus the text inside quoted posts in the composer, and there’s nothing to do about that since we don’t do any validation that the text inside quoted posts actually corresponds to parts of the quoted post.
FWIW, I’ve seen this exact issue in other forum software using inline replies based on markup like BB code and others.
We add a special CSS class to those modified quotes, so you could style those differently to help make users quickly tell faithful quotes from modified ones.