Description of problem:

During the creation of an OSD cluster (GCP or AWS) via UI wizard, Under machine pool step, user specified node label key with illegal characters or symbols and he didn't added any other node label. No validation error is thrown in this case and the user can go to the next step without no issues. But if a second node label is added, then the validation error for the first node label is thrown.

See the recordings: node_label_error.webm

 
How reproducible:
always

Steps to Reproduce:

1. Open OCM UI staging.
2. Open OSD cluster wizard.
3. Fill all required fields and reach to machine pool step.
4. Expand "Edit node labels" option and fill the key and value fields, using for the key illegal characters or symbols.
5. Click "Next" button and view the behavior.

Actual results:
No validation is thrown and the user can go to the next step of the wizard.

Expected results:
A validation error should be thrown when the focus on the node label key input field is lost or on click event of the button "next".