$ git clone -n https://src.fedoraproject.org/rpms/grpc.git /var/lib/mock/f31-build-95291-32538/root/chroot_tmpdir/scmroot/grpc
Cloning into '/var/lib/mock/f31-build-95291-32538/root/chroot_tmpdir/scmroot/grpc'...
$ git reset --hard 081b763df491e5a210eeebbfe66f7729b444aed7
HEAD is now at 081b763 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild