$ git clone -n https://src.fedoraproject.org/rpms/gnome-desktop.git /var/lib/mock/f31-build-55827-28156/root/chroot_tmpdir/scmroot/gnome-desktop
Cloning into '/var/lib/mock/f31-build-55827-28156/root/chroot_tmpdir/scmroot/gnome-desktop'...
$ git reset --hard f2307760a51abf41c797096a42520c54f875035f
HEAD is now at f230776 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild