ACR task will append one extra line to the manifest

[toddysm]

Describe the bug

The line version: v1.1.0 will be added as 1st line no matter what.

Steps to reproduce the behavior:

Prepare a task manifest
Attach it when creating ACR task
az acr task show -n webapptask -r $cR --query step.encodedTaskContent -o tsv | base64 --decode
Result:

What it will cause is - if I somehow wrote the manifest in the wrong format (the example above is not invalid), I cannot get the correct line number due to this issue:

Related command

az acr task show -n webapptask -r $cR --query step.encodedTaskContent -o tsv | base64 --decode

Errors

n/a

Issue script & Debug output

n/a

Expected behavior

The line version: v1.1.0 should not always be added.

Environment Summary

OS: [e.g. Ubuntu, Windows]: Cloud Shell
Azure CLI/PowerShell/SDK version: 2.70.0
Docker version: N/A
Datetime (UTC) when the issue occurred: 2025-03-19T08:50:19:87Z
Registry and image names: N/A

Additional context

No response

[yonzhan]

Thank you for opening this issue, we will look into it.

[toddysm]

Here is the original issue: Azure/acr#825

[microsoft-github-policy-service]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @toddysm, @luisdlp, @northtyphoon, @terencet-dev.

[wju-MSFT]

pr'd a fix: #31153. PTAL thanks!