Sounds like the sort of thing a French vanity project party would call itself. Reminds me of this lot. Stand up, France!
https://en.wikipedia.org/wiki/Debout_la_France
I think they'd be better using some variant of Socialist and Justice or something.
People on the left tend to take a dim view of Labour leaders in opposition making a lot of internal party changes. But if you're not in power, it's one of the few areas where you can actually demonstrate some sort of organizational ability to the wider public. In the same way, people on the left found new political parties to make themselves look busy and practical.