Ability to retain staging instance configuration when importing XML from production

Use Case:

As a JIRA admin I would like to restore the XML backup from production into my test environment. I would like to keep certain elements from my staging instance rather than importing the production values.

• If the production values are imported I must go and change them to back to the staging configuration.

Examples of configuration that I would like to keep:

• Look and Feel
  • Color scheme in staging
  • Logo used in staging
• Announcement Banner
• Base URL
• License

The following are additional configuration items that could be retained:

• Application Link configuration
• User directory configuration
• Mail server configuration

Suggested Change:
On the restore screen provide checkboxes where the admin can select certain configuration elements they wish to keep.