Issue Summary

When importing a space older versions of attachments are missing.

When checking the attachments on a page you can see the versions listed but you can not click and view them.

Steps to Reproduce

1. Make a space export, ensure there are pages  with attachments that have older versions
2. Import into new site and space
3. Go to the attachments of the space
4. Note that the attachments and versions are there
5. Click on current - note it opens and renders the diagram
6. Click on a previous version - note it goes to a missing attachment page

Expected Results

CClick on a previous version and see older versions of the attachments

Actual Results

Click on a previous version - note it goes to a missing attachment page

Workaround

Currently, there is no known workaround for this behavior.