Description of problem:

From the console, while creating VM using the template, customize virtual machine => scripts => Edit cloudinit => Click checkbox script => remove everything and add only a customer value like "example: test" and save and apply.

Now when we edit the cloud int again to see the configuration, the data will be below:

~~~
userData: |
#cloud-config
'0': u
'1': 'n'
'2': d
'3': e
'4': f
'5': i
'6': 'n'
'7': e
'8': d
~~~

Version-Release number of selected component (if applicable):

OpenShift Virtualization 4.13.0

How reproducible:

100%

Steps to Reproduce:

Please refer above.

Actual results:

Cloud-init user data is not parsed correctly if "userData" is removed.

Expected results:

Either validate the user input while saving the data or parse the data correctly.

Additional info: