$ git clone -n https://src.fedoraproject.org/rpms/gtk+extra.git /var/lib/mock/f31-build-50752-27432/root/thebuilddir/tmp/scmroot/gtk+extra
Cloning into '/var/lib/mock/f31-build-50752-27432/root/thebuilddir/tmp/scmroot/gtk+extra'...
$ git reset --hard 9d93ec847ce32280b08bf30358a232c53707ade6
HEAD is now at 9d93ec8 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild