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In 18, the order was: - ๐Ÿš€ start fetch 1 - ๐Ÿš€ start fetch 2 - ๐ŸŒ€render fallback Both fetches started at the same time (1ms difference at most), and the fallback rendered afterwards.

In 19-rc.0, we had: - ๐Ÿš€ start fetch 1 - ๐ŸŒ€ render fallback ... ๐ŸŒ - ๐Ÿ˜ญ start fetch 2 with a clear waterfall between fetch 1 and fetch 2, because fetch 2 would only start after fetch 1 had finished.