[Bug]: .NET Generated REST Clients Use Incorrect Namespaces

[efrainretana]

Describe the bug

Generating code works, but the namespaces of REST client files are incorrectly generating namespaces.
The Namespace of the normal models are Azure.Search.Documents.Models but the REST client seems to do something weird and ends up as Azure.Azure.Search.Documents.Documents...

Reproduction

Delete autorest.md located in Azure.Search.Documents/src/autorest.md
Add a new tsp-location.yaml file in Azure.Search.Documents/:

repo: Azure/azure-rest-api-specs
commit: 9178d923b13fd9a226fe83be1e31b70651fc35bd
directory: specification/search/data-plane/Search
emitterPackageJsonPath: eng/azure-typespec-http-client-csharp-emitter-package.json

Within the /search folder in https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/search/Azure.Search.Documents , run dotnet build /t:GenerateCode

Checklist

• Follow our Code of Conduct
• Check that there isn't already an issue that request the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• The provided reproduction is a minimal reproducible example of the bug.

[jorgerangel-msft]

Thanks for reporting this issue, we will investigate. As a temporary workaround, can you try changing the generated namespace via custom code ?

[jorgerangel-msft]

This appears to be an upstream TCGC bug, see Azure/typespec-azure#3745. The namespace we receive from TCGC is in the same format as it's being reported here.