Ability to back out of Restore from Backup step during installation

Problem Definition

During installation, on the Load Content page, if a user inadvertently clicks Restore from Backup, there is no way to revert and go back to the previous screen.

If they attempt to click another option, they will get Set up step error

Suggested Solution

Provide an option to go back a step if accidentally clicked Restore from Backup without meaning to.

Workaround

Perform workaround #10 from Spring Application Context has not been set documentation:

1. Stop Confluence.
2. Delete the <confluence-home>/confluence.cfg.xml file.
3. Start Confluence.
4. Access the Base URL in your browser to start the Setup Wizard from the beginning.
5. During the database configuration step, choose "Continue and overwrite existing data" if prompted.
6. Make sure all the steps are completed successfully.