feat: order links according to multi-input sort ID

Author: BrendanParmer

ntp_operator.py

@@ -1175,6 +1175,9 @@ def _init_links(self, node_tree: NodeTree) -> None:
         links = node_tree.links
         if links:
             self._write(f"#initialize {nt_var} links")
+            if hasattr(links[0], "multi_input_sort_id"):
+                # generate links in the correct order for multi input sockets
+                links = sorted(links, key=lambda link: link.multi_input_sort_id)
 
         for link in links:
             in_node_var = self._node_vars[link.from_node]