OPS12 Import-MarkdownCommandHelp doesn't handle empty Aliases H2

[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

If the ## ALIASES section is empty the command imports the ## Description section into the Aliases property.

• Example file for testing: Compare-CommandHelp.md

Expected behavior

$c = import-MarkdownCommandHelp -Path .\Microsoft.PowerShell.PlatyPS\Compare-CommandHelp.md
$c.Aliases

Actual behavior

$c.Aliases
## DESCRIPTION

`Compare-CommandHelp` is a troubleshooting tool that compares two CommandHelp objects and produces a
detailed report showing the differences. For example, you can use this to compare objects imported
from different sources, such as two different versions of Markdown files.

Error details

n/a

Environment data

OPS12 build - See the attached markdown file.

Visuals

No response

[sdwheeler]

Fixed in OPS13