ListPart with "Show container's header" checked on a un-published content throw exception

[giantpenguin]

Describe the bug

To Reproduce

Steps to reproduce the behavior:

1. Have a Content Type named "Common Page" has its TitlePart
2. Have a Content Type named "Container Page" has its TitlePart and a ListPart. This ListPart has its "Show container's header" checked and has the "Common Page" is checked in the "Contained Content Types".
3. Create a new content of the "Container Page" but just "Save Draft"
4. Under the draft "Container Page", click on the "Create Common Page" to create a new "Common Page" content, see this error:

An unhandled exception occurred while processing the request.
ArgumentNullException: Value cannot be null. (Parameter 'contentItem')

Expected behavior

The Create new page must be opened successfully

Screenshots

Note that, un-check the ListPart's "Show container's header", the error does not occur.
It is on OC 1.7

[MikeAlhayek]

@giantpenguin Thank for reporting this issue and the details you provided to easily re-produce the issue. A fix was submitted for this issue #14473