[2.3] Archiving and restoring via batch actions doesn't work well with fluent and/or subsites

[robbieaverill]

CWP 2.3.x-dev via kitchen sink

You can "unpublish & archive" pages via batch actions in the CMS, but if one of the pages is translated in another locale it doesn't seem to archive correctly. The page that isn't will be archived correctly.

The restore action doesn't seem to work at all since you can't select the archived page that exists in another locale (presumably the system thinks it's not archived because it exists), and the page that was actually archived disappears from the tree entirely. (See silverstripe/silverstripe-cms#2426)

Workaround for restore batch actions not working is to use the "Archives" section to restore back to draft.

Test run: https://app.hiptest.com/l/test/11279315/restore-pages-in-a-batch

[robbieaverill]

This might be fixed with tractorcow-farm/silverstripe-fluent#536, which improves fluent's handling of deletions