$ git clone -n https://src.fedoraproject.org/rpms/mpir.git /var/lib/mock/f31-build-112258-34273/root/chroot_tmpdir/scmroot/mpir
Cloning into '/var/lib/mock/f31-build-112258-34273/root/chroot_tmpdir/scmroot/mpir'...
$ git reset --hard 4c91f70888b87735afa843ee14c0c6d817d7e16f
HEAD is now at 4c91f70 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild