$ git clone -n https://src.fedoraproject.org/rpms/gnome-desktop-testing.git /var/lib/mock/f31-build-64673-29592/root/chroot_tmpdir/scmroot/gnome-desktop-testing
Cloning into '/var/lib/mock/f31-build-64673-29592/root/chroot_tmpdir/scmroot/gnome-desktop-testing'...
$ git reset --hard e067a31d4337757aa399e3ab282cdee294dab1df
HEAD is now at e067a31 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild