kvm: fix wrong CheckVirtualMachineAnswer when vm does not exist

[weizhouapache]

Description

This PR should fix #12920

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• Build/CI
• Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

[weizhouapache]

@blueorangutan package

[blueorangutan]

@weizhouapache a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 17.60%. Comparing base (59b6c32) to head (8fb2437).

Additional details and impacted files

@@             Coverage Diff              @@
##               4.22   #12928      +/-   ##
============================================
- Coverage     17.60%   17.60%   -0.01%     
- Complexity    15676    15678       +2     
============================================
  Files          5918     5918              
  Lines        531667   531667              
  Branches      65001    65001              
============================================
- Hits          93617    93611       -6     
- Misses       427491   427501      +10     
+ Partials      10559    10555       -4     

Flag	Coverage Δ
uitests	3.70% <ø> (ø)
unittests	18.67% <100.00%> (-0.01%)	⬇️

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[blueorangutan]

Packaging result [SF]: ✔️ el8 ✔️ el9 ✔️ el10 ✔️ debian ✔️ suse15. SL-JID 17307

[DaanHoogland]

makes sense

[weizhouapache]

@blueorangutan test

[blueorangutan]

@weizhouapache a [SL] Trillian-Jenkins test job (ol8 mgmt + kvm-ol8) has been kicked to run smoke tests