The is the first line In the fourth line a variant selector occurs after the ⚠; it should not be counted. 123456789⚠︎1234567890 12345678901234567890 The user probably expects the line range marks to line up, but they don’t. It’s not clear how to fix that. 12345678901234567890 12345678901234567890 12345678901234567890 12345678901234567890 12345678901234567890 12345678901234567890 12345678901234567890 12345678901234567890