Issue Summary

The horizontal scroll bar is lost when converting a table or page properties macro report from a TinyMC editor to a prose-mirror editor. Additionally, the table is not wysiwyg between the editor and renderer.

Steps to Reproduce

1. Create a TinyMC page and add a table that overflows 
2. Copy the table
3. Go to Create a new page on your instance, and select the ‘Legacy Editor’ template when creating.
4. Paste the table or page properties report macro on the page, should see a horizontal scroll bar.
5. Publish the page
6. Edit the page again, you should be able to see a notification saying you can convert the page to use the new Editor.
7. Follow the notification to convert the page
8. The horizontal scroll is gone after convert
9. Check the editor and renderer, you can see the scroll is not consistent between them.
10. Please Check table scroll bar.movfor more details.

Expected Results

The scroll bar should be maintained after the conversion

Actual Results

The scroll bar is lost. Additionally, the table is not wysiwyg.

Workaround

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