`workingDirectory` is ignored in task definition

[Nautigsam]

Describe the bug
When I set containerSettings.workingDirectory in task JSON definition, the task is not submitted with this option.

To Reproduce
Steps to reproduce the behavior:

1. Create a task from JSON editor with the following field:

"containerSettings": {
  "workingDirectory": "containerImageDefault"
}

2. The task is created successfully but the working directory is the default (taskWorkingDirectory)
3. Open the task settings in JSON editor, the field workingDirectory is set to taskWorkingDirectory.

Expected behavior
I expect the working directory to be containerImageDefault.

Version (please complete the following information):

• OS: Linux
• Version 2.22.0-stable.1076