How to export space with attachments and attachment versions

[Pascal Grunau]

Hi,
when exporting a space from Confluence Server and importing it to a Cloud instance, we can see alle the attachments with its history but the former versions of the attachments doesn't seem to be exported. As soon we try to open an old version of any attachment there is a "file not found" error.

Is it possible to export (and import after) with the versions of the attachments?

I don't want to use the migration assistant because there is already migrated to cloud and it is just one space missing. Since the users on-premise are different we will mess up cloud again. We already cleaned them up and I can not deselect all users when trying to migrate with the tool. 

Thank you