Steps to reproduce:

1. Create new template "VMware VMkernel" with a template name and different visible name "vmware.vmkernel".
2. Create new template "Other".
3. Create new discovery with host prototype in template "Other".
4. Define an override for this host prototype.
5. Check Link templates and choose template "VMware VMkernel".
6. Save everything.
7. Export this new created template "Other".

Result:
Host prototype override is exporting the Link templates field incorrectly. It's using the visible name instead of the internal template name.

As a result, if you want to import the exported YAML file, it stops because it cannot find the template.

Expected:

The export should always use the internal template name instead of the visible template name in a host prototype override.