$ git clone -n https://src.fedoraproject.org/rpms/goocanvasmm2.git /var/lib/mock/f31-build-48135-27022/root/chroot_tmpdir/scmroot/goocanvasmm2
Cloning into '/var/lib/mock/f31-build-48135-27022/root/chroot_tmpdir/scmroot/goocanvasmm2'...
$ git reset --hard f9ea47f3751b56e4196d789080d50bfbf9f43a3c
HEAD is now at f9ea47f - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild