When importing the latest Cloud backup to Standalone, it is not possible to configure the mode of the instance

Summary of bug

When importing the latest Cloud instance backup into a Standalone instance, the option to configure the 'mode' of the instance (Public or Private) is missing.

Diagnostic

Checking on the entities.xml file, there is a feature flag which has caused this behavior. Use the command below on Unix backend to check on the said entities:

# zgrep "featureName=\"unified.usermanagement\"" JIRA-backup-20150414.zip
    <Feature id="10100" featureName="unified.usermanagement" featureType="site"/>

This feature flag is exclusive to the JIRA Cloud instances and on the JIRA Cloud instances, the mode configuration is delegated to the user management instead.

Steps to reproduce

1. Obtain a backup from a Cloud instance (which have the dark feature added unified.usermanagement)
2. Restore it in latest JIRA (6.3.15)
3. Head over to the General Configurations and you will noticed that the mode is not visible as below:
   

Workaround

Remove the feature flag from the database

delete from feature where feature_name like 'unified.usermanagement ';

Alternatively, navigate to the dark feature page:

<instance url>/SiteDarkFeatures!default.jspa

And remove the flag from there.

Proposed Fix

• To remove the feature flag when performing export in JIRA Cloud
  OR
• To remove the feature flag during import in JIRA Server