https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121697
--- Comment #2 from Filip Kastl <pheeck at gcc dot gnu.org> --- I don't see this error anymore since r16-4729-gc45a8fb11ae0c5 (not necessarily the commit that fixed it, just the earliest commit I know of). So unless the error got hidden somehow, it is fixed.
