Backup Shutdown/restart bug

What does this MR do and why?

Disable restart while server is backing up if user elects to have server shutdown on a server backup.

Fixes problem with orphan pid issue #121 (closed)

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• Have you checked this doesn't interfere/conflict/duplicate someone elses work?
• Have you fully tested your changes?
• Have you resolved any lint issues?
• Have you assigned a reviewer?
• Have you applied correct labels?