Description of the problem:

Unable to save NHC CR when the Order field has a default value of "0", remediator is Self Node Remediation. Value "0" looks like empty field for webhook

How reproducible:

100%

Steps to reproduce:

1. Login to web-console

2. Go Compute/NodeHealthChecks - > Create NodeHealthCheck

3. Enter the name of NHC CR

4. Choose 'Use escalating remediations'

5. Add first template with Remediator 'Other' and Order '-1'

6. Press 'Add more'

7. Choose 'Self node remediation' remediator

8. Fill 'Timeout field', leave 'Order' field as 0

10. Fill 'Nodes selector'

11. Press 'Create'

Actual results:

Error "Required value" for field "spec.escalatingRemediations[1].order".

Expected results:

Template saved