https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104237
--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> --- -gf4ee27d32 means something didn't work correctly, normally it should be something like r12-6853-gf4ee27d32 which you can use directly in git. Anyway, the git has is after the -g, so f4ee27d32.