Fix crash from #3160 when migrating some old documents to use degrees not radians

Author: Keavon

editor/src/messages/portfolio/document_migration.rs

@@ -1100,23 +1100,30 @@ fn migrate_node(node_id: &NodeId, node: &DocumentNode, network_path: &[NodeId],
 			document.network_interface.set_input(&InputConnector::node(*node_id, 4), new_input, network_path);
 		}
 
-		// Remove the possible existence of the old "Pivot" hidden value input that was removed in #2730
-		let nested_transform_network = [network_path, &[*node_id]].concat();
-		if node.inputs.get(5).is_some() {
-			document.network_interface.remove_import(5, &nested_transform_network);
-		}
-
-		// Add the Origin Offset parameter as a hidden input, which will be given actual functionality in the future but is currently used as a marker to detect not-yet-upgraded Transform nodes
-		document
+		if document
 			.network_interface
-			.add_import(TaggedValue::DVec2(DVec2::ZERO), false, 5, "Origin Offset", "", &nested_transform_network);
-		document.network_interface.set_input_override(node_id, 5, Some("hidden".to_string()), network_path); // Hide it while we're not yet using it
+			.node_metadata(node_id, network_path)
+			.map(|x| x.persistent_metadata.input_metadata.len() > 5)
+			.unwrap_or_default()
+		{
+			// Remove the possible existence of the old "Pivot" hidden value input that was removed in #2730
+			let nested_transform_network = [network_path, &[*node_id]].concat();
+			if node.inputs.get(5).is_some() {
+				document.network_interface.remove_import(5, &nested_transform_network);
+			}
 
-		// Add the Scale Appearance parameter as a hidden input, which will be given actual functionality in the future but is currently used as a marker to detect not-yet-upgraded Transform nodes
-		document
-			.network_interface
-			.add_import(TaggedValue::Bool(true), false, 6, "Scale Appearance", "", &nested_transform_network);
-		document.network_interface.set_input_override(node_id, 6, Some("hidden".to_string()), network_path); // Hide it while we're not yet using it
+			// Add the Origin Offset parameter as a hidden input, which will be given actual functionality in the future but is currently used as a marker to detect not-yet-upgraded Transform nodes
+			document
+				.network_interface
+				.add_import(TaggedValue::DVec2(DVec2::ZERO), false, 5, "Origin Offset", "", &nested_transform_network);
+			document.network_interface.set_input_override(node_id, 5, Some("hidden".to_string()), network_path); // Hide it while we're not yet using it
+
+			// Add the Scale Appearance parameter as a hidden input, which will be given actual functionality in the future but is currently used as a marker to detect not-yet-upgraded Transform nodes
+			document
+				.network_interface
+				.add_import(TaggedValue::Bool(true), false, 6, "Scale Appearance", "", &nested_transform_network);
+			document.network_interface.set_input_override(node_id, 6, Some("hidden".to_string()), network_path); // Hide it while we're not yet using it
+		}
 	}
 
 	// Add context features to nodes that don't have them (fine-grained context caching migration)