Merge pull request #246996 from pennae/nrd-empty-inlines

nixos-render-docs: fix empty inlines

pkgs/tools/nix/nixos-render-docs/src/nixos_render_docs/manual.py

···
             elif bt.type == 'footnote_ref' and (id := cast(str, bt.attrs.get('id', ''))):
                 result.append(XrefTarget(id, "???", None, None, target_file))
             elif bt.type == 'inline':
-                assert bt.children
+                assert bt.children is not None
                 result += self._collect_ids(bt.children, target_file, typ, False)
             elif id := cast(str, bt.attrs.get('id', '')):
                 # anchors and examples have no titles we could use, but we'll have to put

pkgs/tools/nix/nixos-render-docs/src/nixos_render_docs/md.py

···
                 token.attrs['id'] = f'{token.meta["label"]}.__back.{token.meta["subId"]}'
                 token.meta['target'] = token.meta["label"]
             elif token.type == 'inline':
-                assert token.children
+                assert token.children is not None
                 generate_ids(token.children)
 
     def footnote_ids(state: markdown_it.rules_core.StateCore) -> None: