Recover deleted jams

Hello, I need help. I just deleted a jam by complete mistake. Is it possible to revive it? If so, how does it work? Is it re-posted as a new jam, or re-written from a backup?

https://www.wikiloops.com/backingtrack-jam-136951

I always wondered if I ever accidentally remove a jam by mishitting buttons on the phone. That's achieved now.
If there's no response for some time, I'm gonna put this into the bug report chamber

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