SourceLink build errors when using a "limited refs" clone

[crhaglun]

When cloning an ADO repo with limited refs, i.e. adding "optimized/" to an ADO repo path (https://dev.azure.com/account/project/optimized/_git/repo), SourceLink fails to validate the repository URL when building.

The value of SourceRoot.RepositoryUrl with identity 'C:\git\repo' is invalid: 'https://dev.azure.com/account/project/optimized/_git/repo' C:\Program Files\dotnet\sdk\8.0.100\Sdks\Microsoft.SourceLink.AzureRepos.Git\build\Microsoft.SourceLink.AzureRepos.Git.targets 28

Cloning the same repo normally (https://dev.azure.com/account/project/_git/repo) works perfectly fine.

[tmat]

Docs on limited refs: https://learn.microsoft.com/en-us/previous-versions/azure/devops/all/git/limited-refs?view=tfs-2017 do not mention "optimized" as part of the path. @crhaglun are you aware of another documentation for it?

[crhaglun]

@tmat heh, I'm trying to find something more official, but I always end up on https://stackoverflow.com/questions/56598474/how-do-you-enabled-limited-refs-in-tfs-git

Internal docs point at https://vsowiki.com/index.php?title=Limited_Refs_Basics - but that host no longer appears to be online

The "Limited Refs" article talks about enabling limited refs by default, and then mentions that it's possible to bypass limited refs for a repo on ADO by adding "_full" to the repo URL when cloning.

What it does not mention is that the opposite is true, for an unmodified repo you can opt in to limited refs by adding "_optimized" to the repo URL when cloning.

This feature is available on every ADO project I've tried it, but the lack of official documentation is unexpected.
Perhaps it's a first-party feature?