[REGRESSION]: CopyFiles task copies symlink file as folder

[bryanchen-d]

New issue checklist

• I searched for existing GitHub issues
• I read pipeline troubleshooting guide
• I checked how to collect logs

Task name

CopyFiles

Breaking task version

2.253.0

Last working task version

2.246.0

Regression Description

The new version of copy files task copied the symlink as folder, while it used to directly copy the target file of the symlink. This is failing our builds and blocking our production releases.

The code change seems to be Updated task-lib to v5 for CopyFilesV2 and ArchiveFilesV2 tasks (#20859) · microsoft/azure-pipelines-tasks@f3ff565 · GitHub

Environment type (Please select at least one enviroment where you face this issue)

• Self-Hosted
• Microsoft Hosted
• VMSS Pool
• Container

Azure DevOps Server type

dev.azure.com (formerly visualstudio.com)

Azure DevOps Server Version (if applicable)

No response

Operation system

Mariner

Relevant log output

System.IO.FileLoadException: Unable to load symbolic/hard linked file.  Check 'fsutil behavior query SymlinkEvaluation' to ensure proper behavior.
 ---> System.IO.FileNotFoundException: Could not find file '/mnt/vss/_work/1/s/out/NotebookExtensions/node_modules/tmp/node_modules/.bin/rimraf/rimraf'.
File name: '/mnt/vss/_work/1/s/out/NotebookExtensions/node_modules/tmp/node_modules/.bin/rimraf/rimraf'

Full task logs with system.debug enabled

UNSUCCESSFUL RUN

 [REPLACE THIS WITH YOUR INFORMATION] 

SUCCESSFUL RUN

 [REPLACE THIS WITH YOUR INFORMATION] 

Repro steps

[merlynomsft]

Thank you for the report. We are investigating this issue.

[merlynomsft]

We rolled back the impacted version of CopyFilesV2 task 2.253.0 to 2.246.0 so this issue should no longer be affecting pipelines.

Our engineers will be investigating this further to learn from and reduce the risk of potential recurrences. We apologize for the impact this had on our customers.

We will keep this issue open to track the fix for this bug.