bug: Workflow call failing to fetch .github repository (Exit Code 128)

[MatthewLabasan-NBCU]

Subject: Workflow call failing to fetch .github repository (Exit Code 128)

Problem

I am encountering a sudden failure when using a workflow_call to reference agentic workflows in our shared .github repository. This setup was functioning correctly in previous versions, but it is now failing during the repository checkout phase with a "Repository not found" error.

I am currently on version 0.68.2 preview. I have confirmed that this also fails on 0.68.1.

Reproduction

1. Use a caller workflow in a repository
2. Attempt to call a shared agentic workflow.
3. The activation job starts but fails during the checkout phase.

Expected: The actions/checkout step should successfully authenticate and fetch the .github repository.

Actual: The workflow fails with exit code 128 after multiple retries. The logs indicate the repository cannot be found, even though other existing workflow files calling the same .github repository are still functioning as expected.

Error Logs

The workflow fails at the Checkout .github and .agents folders step:

Waiting 13 seconds before trying again
  /usr/bin/git -c protocol.version=2 fetch --no-tags --prune --no-recurse-submodules --filter=blob:none --depth=1 origin 118bf9bd5ef3587465ea95db05ff79813f4156fb
  remote: Repository not found.
  Error: fatal: repository '[https://github.com/____/.github/](https://github.com/____/.github/)' not found
Removing auth
Error: The process '/usr/bin/git' failed with exit code 128

[pelikhan]

Would you be able to ask the agentic-workflows agent to investigate the failure (give it the workflow run url) on your side and update the issue with anonymized information?