Handle the new bundlelib format which doesn't include the add unit count
Handle the new bundlelib format which doesn't include the add unit count

bac/juju-gui,mitechie/juju-gui,mitechie/juju-gui,mitechie/juju-gui,mitechie/juju-gui,bac/juju-gui,bac/juju-gui,bac/juju-gui