diff --git a/spike/review/reinvent/ezmded/server/server_test.go b/spike/review/reinvent/ezmded/server/server_test.go
index 3f378b8..fae9df0 100644
--- a/spike/review/reinvent/ezmded/server/server_test.go
+++ b/spike/review/reinvent/ezmded/server/server_test.go
@@ -210,6 +210,23 @@ func TestServerPutTreeGetFile(t *testing.T) {
 		if !bytes.Contains(w.Body.Bytes(), []byte(`{"Title":"my title","Deleted":false,"Content":"`)) {
 			t.Fatal(w)
 		}
+		var branch Branch
+		if err := json.NewDecoder(w.Body).Decode(&branch); err != nil {
+			t.Fatal(err)
+		}
+		t.Logf("TODO: %+v", branch)
+		if branch.Leaf != (Leaf{}) {
+			t.Error(branch.Leaf)
+		}
+		if parent, ok := branch.Branches["my pid"]; !ok {
+			t.Error(ok, branch)
+		} else if parent.Leaf.Title != "Untitled" {
+			t.Error(parent.Leaf)
+		} else if child, ok := parent.Branches[NewID(id)]; !ok {
+			t.Error(ok, NewID("my pid").Push(id), parent)
+		} else if child.Leaf.Title != "my title" {
+			t.Error(child.Leaf)
+		}
 	})
 	t.Run("get", func(t *testing.T) {
 		r := httptest.NewRequest(http.MethodGet, "/"+url.PathEscape(id), nil)
diff --git a/spike/review/reinvent/ezmded/server/tree.go b/spike/review/reinvent/ezmded/server/tree.go
index deac351..15e02ba 100644
--- a/spike/review/reinvent/ezmded/server/tree.go
+++ b/spike/review/reinvent/ezmded/server/tree.go
@@ -67,21 +67,21 @@ func (tree Tree) WithRoot(root string) Tree {
 }
 
 func (tree Tree) GetRootMeta() (Branch, error) {
-	return tree.getRoot(false, false)
+	return tree.getRoot(NewID(""), false, false)
 }
 
 func (tree Tree) GetRoot() (Branch, error) {
 	if !tree.cachedRoot.IsZero() {
 		return tree.cachedRoot, nil
 	}
-	got, err := tree.getRoot(true, false)
+	got, err := tree.getRoot(NewID(""), true, false)
 	if err == nil {
 		tree.cachedRoot = got
 	}
 	return got, err
 }
 
-func (tree Tree) getRoot(withContent, withDeleted bool) (Branch, error) {
+func (tree Tree) getRoot(pid ID, withContent, withDeleted bool) (Branch, error) {
 	m := Branch{Branches: map[ID]Branch{}}
 	entries, err := os.ReadDir(tree.root)
 	if os.IsNotExist(err) {
@@ -105,10 +105,10 @@ func (tree Tree) getRoot(withContent, withDeleted bool) (Branch, error) {
 			}
 		} else if entry.IsDir() {
 			subtree := tree.WithRoot(path.Join(tree.root, entry.Name()))
-			if branch, err := subtree.getRoot(withContent, withDeleted); err != nil {
+			if branch, err := subtree.getRoot(pid.Push(entry.Name()), withContent, withDeleted); err != nil {
 				return Branch{}, err
 			} else if !branch.IsZero() && (!branch.Leaf.Deleted || withDeleted) {
-				m.Branches[NewID(entry.Name())] = branch
+				m.Branches[pid.Push(entry.Name())] = branch
 			}
 		}
 	}
diff --git a/spike/review/reinvent/ezmded/server/tree_test.go b/spike/review/reinvent/ezmded/server/tree_test.go
index 28aacf4..a13b0b4 100644
--- a/spike/review/reinvent/ezmded/server/tree_test.go
+++ b/spike/review/reinvent/ezmded/server/tree_test.go
@@ -29,7 +29,7 @@ func TestTreeDel(t *testing.T) {
 		t.Fatal(root.Branches)
 	}
 
-	if root, err := tree.getRoot(false, true); err != nil {
+	if root, err := tree.getRoot(NewID(""), false, true); err != nil {
 		t.Fatal(err)
 	} else if len(root.Branches) != 1 {
 		t.Fatal(root.Branches)