Issue Summary

Unable to restore Confluence Cloud Site Export to Confluence 6.15.2 due to this error: 

Unable to complete import: Error while importing backup: com.atlassian.confluence.api.model.people.MigratedUser

This is currently happening for all site exports.

Environment

Migrating from Confluence Cloud to Confluence Server

Steps to Reproduce

1. Create a site export from Confluence Cloud
2. Import into Confluence Server

Expected Results

Restore completes

Actual Results

1. This seems to be occurring for any site export after April 24th, 2019

The below exception is thrown in the atlassian-confluence.log file:

2019-04-25 14:50:41,968 ERROR [Long running task: Importing data] [confluence.importexport.xmlimport.BackupImporter] importEntities Cannot import the entities: 
 -- url: /longrunningtaskxml.action | referer: http://localhost:8090/admin/restore.action?synchronous=false | traceId: d5700bb61e35e48b | userName: admin | action: longrunningtaskxml
com.atlassian.confluence.importexport.ImportExportException: Unable to complete import: Error while importing backup: com.atlassian.confluence.api.model.people.MigratedUser
	at com.atlassian.confluence.importexport.xmlimport.DefaultXmlImporter.doImportInternal(DefaultXmlImporter.java:71)

Workaround #1

• Migrate through Space exports
  • This will not bring over your users from Cloud

Workaround #2

• This workaround should include your Cloud users
• Remove all complete com.atlassian.confluence.api.model.people entries in the entities.xml file, zip the file back up including the exportDescriptor.properties, plugin-data, and attachments, then restore the backup.
  • Example entry:

    <object class="MigratedUser" package="com.atlassian.confluence.api.model.people">
    <id name="key"><![CDATA[8a7f80896a51628a016a55006f3a0059]]></id>
    <property name="username"><![CDATA[557057:05e42c55-b9a0-4f6a-a239-cac4f500a761]]></property>
    <property name="hashedUsername"><![CDATA[b259be919cf4d62ff34e82eefd735e61]]></property>
    <property name="accountId"><![CDATA[557057:05e42c55-b9a0-4f6a-a239-cac4f500a761]]></property>
    </object>