$ git clone -n https://src.fedoraproject.org/rpms/synapse.git /var/lib/mock/f40-build-793434-138983/root/chroot_tmpdir/scmroot/synapse
Cloning into '/var/lib/mock/f40-build-793434-138983/root/chroot_tmpdir/scmroot/synapse'...
$ git reset --hard 07b580ee886849b7d6503d043ac8b6f3999231c9
HEAD is now at 07b580e Actually it is found that there is no error... not knowing why I downgraded build_type_safety_c to 2...??