Figure out how to add accurate keys to trackgroups where songs might repeat

[simonv3]

react-dom.development.js:86 Warning: Encountered two children with the same key, `22826`. Keys should be unique so that components maintain their identity across updates. Non-unique keys may cause children to be duplicated and/or omitted — the behavior is unsupported and could change in a future version.
    at tbody
    at table
    at http://localhost:8080/static/js/bundle.js:15018:66
    at http://localhost:8080/static/js/bundle.js:12294:5
    at div
    at History (http://localhost:8080/static/js/bundle.js:3476:83)
    at Outlet (http://localhost:8080/static/js/bundle.js:231284:26)
    at div
    at div
    at Library (http://localhost:8080/static/js/bundle.js:3967:81)
    at Routes (http://localhost:8080/static/js/bundle.js:231376:5)
    at div
    at div
    at http://localhost:8080/static/js/bundle.js:15018:66
    at App (http://localhost:8080/static/js/bundle.js:256:83)
    at AuthProvider (http://localhost:8080/static/js/bundle.js:678:5)
    at GlobalStateProvider (http://localhost:8080/static/js/bundle.js:12853:5)
    at SnackBarContextProvider (http://localhost:8080/static/js/bundle.js:12596:70)
    at ThemeProvider (http://localhost:8080/static/js/bundle.js:15058:64)
    at InsideRouter
    at Router (http://localhost:8080/static/js/bundle.js:231309:15)
    at MemoryRouter (http://localhost:8080/static/js/bundle.js:231218:5)

I haven’t quite figured out what to do with that error. It’s happening because in React when you map to create child elements you need to provide a “key” object so that react can keep track of which element is which for reordering and updating. This key element has to be unique and it can’t just be the index of the array. I’m trackgroups we use the id of the track. But if you’re on a playlist, it could be that the track repeats, cause you’ve played it twice or you added it to the playlist twice.

[whatSocks]

that's strange - on history the track appears only once even if you play it multiple times.

[simonv3]

Huh, so interestingly enough, if a song appears twice in a playlist that song will have the same index. That seems like an API bug.

GET https://stream.resonate.coop/api/v3/user/trackgroups/43ecfd77-6817-4086-97d2-fe67f0e65f23

I put in a temporary fix for this on the front-end, but it needs to be changed to not just be the array's index.