I think so. Is it a combining diacritic? Or are there also letter forms where the accent is combined with the letter into a single unit?
When you combine the symbol with a Roman letter it merges into one (or it just looks so), see é or á. The Cyrillic letters look a bit differently: е́ and а́. But I can click on backspace and remove the symbol from both Roman and Cyrillic, "delete" will delete both characters. Sorry if I'm not helpful. BTW, Serbo-Croatian doesn't remove all diacritics from Cyrillic but I don't remember, which one.
Here's a full list: А́, Е́, Ё́, И́, О́, У́, Ы́, Э́, Ю́, Я́, а́, е́, ё́, и́, о́, у́, ы́, э́, ю́, я́ It's usually wrong to put accents on Ё (it's stressed in 99.9% of cases) but please add them as well)
I have tried adding only the combining character to strip, it's possible that it is enough. Can you try?
No, it didn't work (after a hard refresh). I used рабо́та, "page name" field shows the same and the preview shows the same.