Missing Git tags

[fviernau]

Summary of the new feature / enhancement

As a user I would like to find out from which revision a particular package was build.

Proposed technical implementation details (optional)

Add Git tags named after the version of the releases.

[fviernau]

Note: I was looking in particular for 7.2.1.

After digging further I found in the bsi.json file in the NuGet package the following content:

{
  "Source": "InternalBuild",
  "Data": {
    "System.CollectionId": "ee8504d9-65a6-4f6c-85ed-0ad4265128ee",
    "System.DefinitionId": "1450",
    "System.TeamProjectId": "77a1c29b-239f-4366-aff0-07ae2b747fc0",
    "System.TeamProject": "MarkdownRender",
    "Build.BuildId": "375541",
    "Build.BuildNumber": "MarkdownRender-Release-375541",
    "Build.DefinitionName": "MarkdownRender",
    "Build.DefinitionRevision": "4",
    "Build.Repository.Name": "MarkdownRender",
    "Build.Repository.Provider": "TfsGit",
    "Build.Repository.Id": "e6c59df0-5406-4ff2-bfec-c22f3f06bb6a",
    "Build.SourceBranch": "refs/heads/release/v7.2.1",
    "Build.SourceBranchName": "v7.2.1",
    "Build.SourceVersion": "d71a0ba1282e4b226ecf41bf7d8539c4289c74fc",
    "Build.Repository.Uri": "https://mscodehub.visualstudio.com/MarkdownRender/_git/MarkdownRender"
  },
  "Feed": null
}

So, this seems to have been built from an internal repository.
Can you tell whether the code is available open source?