[10.0 RC 2] PackageDownload received another item

### Describe the bug
This _looks_ like a bug, as my tests started failing with the new RC (previously .NET 9).

### To Reproduce

```

net9.0
false

```

Now I'm getting another package from `project.assets.json`:

```
var packageDownloads = json.SelectTokens($"$.project.frameworks.{framework}.downloadDependencies[*]")
.Select(x => x.ToObject()!)
.SelectMany(x =>
from version in x.Property("version")!.Value.ToString().Split(';')
let id = x.Property("name")!.Value.ToString()
select (Id: id, VersionRange: VersionRange.Parse(version))).ToList();
```