$ git clone -n https://src.fedoraproject.org/rpms/GMT.git /var/lib/mock/f31-build-90506-32225/root/chroot_tmpdir/scmroot/GMT
Cloning into '/var/lib/mock/f31-build-90506-32225/root/chroot_tmpdir/scmroot/GMT'...
$ git reset --hard c9ea2008ecafc0fb87685aa8551230791c4f65f7
HEAD is now at c9ea200 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild