https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100183
--- Comment #1 from anlauf at gcc dot gnu.org --- Cannot reproduce either with GNU Fortran (SUSE Linux) 10.2.1 20200825 [revision c0746a1beb1ba073c7981eb09f55b3d993b32e5c] nor with GNU Fortran (GCC) 10.3.1 20210420 May need narrowing down to affected versions.