Fix infinite recursion introduced in #2795 that occurs in old document migrations

editor/src/messages/portfolio/document/utility_types/network_interface.rs

@@ -6649,7 +6649,7 @@ struct InputTransientMetadata {
 }
 
 /// Persistent metadata for each node in the network, which must be included when creating, serializing, and deserializing saving a node.
-#[derive(Debug, Clone, PartialEq, serde::Serialize, serde::Deserialize)]
+#[derive(Default, Debug, Clone, PartialEq, serde::Serialize, serde::Deserialize)]
 pub struct DocumentNodePersistentMetadata {
 	/// The name of the node definition, as originally set by [`DocumentNodeDefinition`], used to display in the UI and to display the appropriate properties if no display name is set.
 	// TODO: Used during serialization/deserialization to prevent storing implementation or inputs (and possible other fields) if they are the same as the definition.
@@ -6676,21 +6676,6 @@ pub struct DocumentNodePersistentMetadata {
 	pub network_metadata: Option<NodeNetworkMetadata>,
 }
 
-impl Default for DocumentNodePersistentMetadata {
-	fn default() -> Self {
-		DocumentNodePersistentMetadata {
-			reference: None,
-			display_name: String::new(),
-			input_metadata: Vec::new(),
-			output_names: Vec::new(),
-			pinned: false,
-			locked: false,
-			node_type_metadata: NodeTypePersistentMetadata::default(),
-			network_metadata: None,
-		}
-	}
-}
-
 impl DocumentNodePersistentMetadata {
 	pub fn is_layer(&self) -> bool {
 		matches!(self.node_type_metadata, NodeTypePersistentMetadata::Layer(_))

editor/src/messages/portfolio/document/utility_types/network_interface/deserialization.rs

@@ -23,7 +23,13 @@ impl From<DocumentNodePersistentMetadataInputNames> for DocumentNodePersistentMe
 	fn from(old: DocumentNodePersistentMetadataInputNames) -> Self {
 		DocumentNodePersistentMetadata {
 			input_metadata: Vec::new(),
-			..old.into()
+			reference: old.reference,
+			display_name: old.display_name,
+			output_names: old.output_names,
+			locked: old.locked,
+			pinned: old.pinned,
+			node_type_metadata: old.node_type_metadata,
+			network_metadata: old.network_metadata,
 		}
 	}
 }