Verify route-only Layout reset history and format candidate

crates/oa-core/src/session.rs

@@ -956,12 +956,17 @@ fn layout(p: &mut Project, diagram: Id) -> Result<(), ModelError> {
     // Batch this is the staged input, not an independently validated prefix.
     let view = crate::projection::project_view(p, diagram);
     let visible_nodes: BTreeSet<_> = view.nodes.iter().map(|node| node.id).collect();
-    let reset_routes: BTreeSet<_> = view.edges.iter().filter_map(|edge| {
-        let owners = crate::projection::edge_endpoint_placements(p, d, edge.id)?;
-        (owners == (edge.source, edge.target)
-            && visible_nodes.contains(&edge.source)
-            && visible_nodes.contains(&edge.target)).then_some(edge.id)
-    }).collect();
+    let reset_routes: BTreeSet<_> = view
+        .edges
+        .iter()
+        .filter_map(|edge| {
+            let owners = crate::projection::edge_endpoint_placements(p, d, edge.id)?;
+            (owners == (edge.source, edge.target)
+                && visible_nodes.contains(&edge.source)
+                && visible_nodes.contains(&edge.target))
+            .then_some(edge.id)
+        })
+        .collect();
     let parents = crate::projection::parents(p, d);
     let mut children: BTreeMap<Option<Id>, Vec<Id>> = BTreeMap::new();
     for (id, parent) in &parents {
@@ -1054,7 +1059,8 @@ fn layout(p: &mut Project, diagram: Id) -> Result<(), ModelError> {
         }
         node
     };
-    let edges: BTreeSet<_> = view.edges
+    let edges: BTreeSet<_> = view
+        .edges
         .iter()
         .filter_map(|edge| {
             let source = root_of(edge.source);