2 years, whow you've got patience
But now that you say it... Yes, after saving german pages I often have the same problem! And even online sometimes, though mostly in the past. For me too that was a major pain in the a** for too many years, until I finally found thatt function in KM. Things can be so easy, sigh. Glad that helped you too now
BTW a page doesn't get changed when saving, it's just the encoding setting that gets forgotten sometimes, I suspect perhaps if it's defined in some external file which isn't stored, but no idea.