Cache manifest lists can't be exported to ghcr.io (GitHub Container Registry)

[mjgallag]

------
> exporting cache:
------
error: failed to solve: rpc error: code = Unknown desc = error writing manifest blob: failed commit on ref "sha256:ab3273d08b550eacbe8b626dca6a262d40046f88748fef4bc8f6e2c401917e0b": unexpected status: 400 Bad Request

[clarkbw]

👋 We've rolled out a fix for this today, please try again and let us know!

[mjgallag]

@clarkbw it works, thanks for the quick fix!

One minor issue is that it doesn't display cache manifest correctly:

{
  "digest": "sha256:ab5f8d87b368638c88700111899a3ebac636e2594b3bc410588eb80b236b3fe5",
  "mediaType": "application/vnd.oci.image.index.v1+json",
  "size": 5406,
  "config": {
    "digest": "",
    "mediaType": "",
    "size": 0
  },
  "layers": [

  ]
}