HTML Exports fails in Spaces with more than 3 GB in Attachments

Summary

HTML Exports fails in Spaces with more than 3 GB in Attachments

Steps to Reproduce

1. In a Confluence space, attach files to pages until you have at least 3 GB of attachments in the space
2. Go to Space settings > Manage space > Export space > HTML

Expected Results

The Space will be exported.

Actual Results

Export runs for hours and fails at 99%

Workaround

Export it in smaller chunks of pages, if you really need this to be in HTML, otherwise, consider the CSV export