Optional templateid param fails for KVM VM import #13067

problem

When importing a KVM VM via API and if a template is not specified, import fails with error,
Template is needed and unable to use default template for hypervisor KVM
Even though templateid parameter is specified as optional in the API documentation:
https://cloudstack.apache.org/api/apidocs-4.22/apis/importUnmanagedInstance.html

In UI, template is a required field though.

Documentation doesn't talk about this restriction on KVM
https://docs.cloudstack.apache.org/en/4.22.0.0/adminguide/virtual_machines/importing_unmanaging_vms.html

This is more of a documentation issue if the following block can not be updated:
https://github.com/apache/cloudstack/blob/4.22.0.0/server/src/main/java/org/apache/cloudstack/vm/UnmanagedVMsManagerImpl.java#L1605-L1607

versions

4.22; Maybe other versions as well
Import VM

The steps to reproduce the bug

No response

What to do about it?

Either update the documentation or remove the restriction to use default dummy template.