Issue Summary

Exporting a Page tree with Child pages to PDF results in the jumbled order of child pages

Steps to Reproduce

Export a Page with child pages:

1. Select Space settings.

1. Under Manage space, select Export space.

1. Choose PDF

1. Choose Custom export
2. Select the Page and the Child pages
3. Export

Expected Results

The downloaded PDF file should include the Index, and the Child pages should be ordered in the same sequence they are placed in the UI

Actual Results

In the resulting PDF, the child pages are not in the same sequence as they are placed in the UI. 

So if the page tree on UI is:

Parent
├─ Child 1
├─ Child 2
└─ Child 3

The resulting PDF is emitting a jumbled sequence: Child 3 → Child 1 → Child 2

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available