I installed fresh SS package via composer. The site,DB and all other stuff in UTF-8
Ok, it works great.
Now I insert single word in themes/simple/Page.ss in un-english charset, in my case it was Russian word "тест".
After that the main page looked screwed up, I see "тестстт�" instead of "тест" and all the remainder of the page after this word just disappeared.
Ok, it looks like a bug and I placed issue on Github.
But how can I solve this problem just now? My site is closed now so I need a temporary solution or advice or maybe some dirty hack just to get it work.