$ git clone -n https://src.fedoraproject.org/rpms/tomsfastmath.git /var/lib/mock/f42-build-3282749-41399/root/chroot_tmpdir/scmroot/tomsfastmath
Cloning into '/var/lib/mock/f42-build-3282749-41399/root/chroot_tmpdir/scmroot/tomsfastmath'...
$ git fetch origin 1f8c02122e2fa5a5cae9d707ab843258528b8990:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tomsfastmath
 * [new ref]         1f8c02122e2fa5a5cae9d707ab843258528b8990 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1f8c021 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild