So SolidJS has this solved elegantly? It lets you choose between object identity and index, and it doesn't have that caveat for object identity because it knows

So SolidJS has this solved elegantly? It lets you choose between object identity and index, and it doesn't have that caveat for object identity because it knows what's going into <For> and not just what's coming out of it. Don't omit the key in React unless you want warnings.