Motion detail view: PDF export doesn't export current version

[MSoeb]

Describe the bug
The PDF export in the motion detail view is inconsistent. All versions of a motion can be exported, except the version that shows all possible changes to a motion. More precisely, it concerns the version that is displayed when you check the 'Show all Changes' box. This cannot be exported. This feels incomplete or broken. This issue has therefore been given the label Bug.

How to Reproduce
Steps to reproduce the behavior:

1. open a meeting
2. open motions > create a motion with two amendments
3. open the motion > change view to diff version > mark 'show all changes' > try to export this version
4. add a change recommendation to the motion > mark 'show all changes' > export. The change recommendation is exported, the amendments not

Expected behavior
The PDF export should follow the WYSIWYG principle. What the user has selected should always be exported. In this specific case, this means that as soon as 'Show all changes' is selected, the export should export this variant.