Some null/empty values in Yaml are missing `''` or `[]`

[sdwheeler]

Prerequisites

• [X] Write a descriptive title.
• [X] Make sure you are able to repro it on the latest released version
• [X] Search the existing issues.

Steps to reproduce

Some fields are empty but do not display '' or [], where we need them to have an empty value explicitly. Those places are pointed by red arrows in below screenshot:

Expected behavior

Expect to have empty values for valid YAML.

Actual behavior

Missing values

Error details

No response

Environment data

• PlatyPS 1.0.0-preview1
• See related work item: https://dev.azure.com/ceapex/Engineering/_workitems/edit/1009614

Visuals

No response