Windows container started by the plugin shows values of WORKSPACE and WORKSPACE_TMP environment variables in Linux format

[andreasgk16]

Jenkins and plugins versions report

Environment

Jenkins: 2.462.3
OS: Linux - 5.15.0-301.163.5.2.el9uek.x86_64
Java: 11.0.25 - Red Hat, Inc. (OpenJDK 64-Bit Server VM)
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What Operating System are you using (both controller, and any agents involved in the problem)?

Controller: Oracle Linux 9
Agents: Windows Server 2019

Reproduction steps

1. Create a Docker agent template on a Windows Docker host
2. Use a Docker image in which NO working directory is explicitly set. The default is C:\
3. Run a build job using the label defined in the above template.
4. In the build job, execute the command 'set' to list all environment variables.

This behavior breaks some build jobs.

Expected Results

Actual Results

Anything else?

Btw. If the Docker container comes with a Dockerfile having
WORKDIR C:\Users\ContainerAdministrator
inside, then the issue does not appear.

Are you interested in contributing a fix?

No response