[Bug] Template bug

**Describe the bug**
When the `separatePages` is used for .NET api docs, the pages for fields have the `` contents also copied over as if the `` in the .NET docs was populated. However, any links in it are not copied over (ex CREFs), replacing the contents with an empty string. This does not happen if `` was explicitly set in the .net xml docs.

When the `samePage` setting is used, the `` contents are not displayed in the `` space at all. If the `` is omitted from the XML docs, then the generated site displays nothing under the field value. The behavious between `samePage` and `separatePages` is inconsistent.

- When `separatePages` is used and `` is not set:
- When `separatePages` is used and `` is set:
- `samePage` is used, `` unset:
- `samePage`, `` set:

- Browser: firefox
- Form factor: desktop
- Docfx version: 2.78.3+850a61c2ecb83b0bda21448f1393e480934556fd
- Template: default