$ git clone -n https://src.fedoraproject.org/rpms/gconfmm26.git /var/lib/mock/f29-build-5350-1276/root/thebuilddir/tmp/scmroot/gconfmm26
Cloning into '/var/lib/mock/f29-build-5350-1276/root/thebuilddir/tmp/scmroot/gconfmm26'...
$ git reset --hard 4da99a722bdd8e10ae3e33947747d45cd5957726
HEAD is now at 4da99a7 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild