Incorrect indentation

If a line contains a string with a letter å ä och ö (Swedish letters) the next line is incorectly indented.

e.g.

int main()

{          cout << "ä" << endl;         return 0; // incorrectly indented by auto-indent selection }

se also 

https://stackoverflow.com/questions/77171606/qt-creator-incorrect-indentation-after-%c3%a5%c3%a4%c3%b6