$ git clone -n https://src.fedoraproject.org/rpms/cups-pk-helper.git /var/lib/mock/f29-build-2032-644/root/thebuilddir/tmp/scmroot/cups-pk-helper
Cloning into '/var/lib/mock/f29-build-2032-644/root/thebuilddir/tmp/scmroot/cups-pk-helper'...
$ git reset --hard 79b18dbc2ed6c91b135a47c777902372ad94e72d
HEAD is now at 79b18db - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild