From 5c4d8aeba7c05070d59cca73bd599129695cefc4 Mon Sep 17 00:00:00 2001
From: Maurice Parker <mo@vincode.io>
Date: Sat, 28 Dec 2019 10:58:15 -0700
Subject: [PATCH] Verify that the parent node to be expanded is a Folder before
 trying to expand it.

---
 iOS/MasterFeed/MasterFeedViewController.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/iOS/MasterFeed/MasterFeedViewController.swift b/iOS/MasterFeed/MasterFeedViewController.swift
index 90134854e..2b35586fe 100644
--- a/iOS/MasterFeed/MasterFeedViewController.swift
+++ b/iOS/MasterFeed/MasterFeedViewController.swift
@@ -564,7 +564,7 @@ class MasterFeedViewController: UITableViewController, UndoableCommandRunner {
 			}
 		
 			// It wasn't already visable, so expand its folder and try again
-			guard let parent = node.parent else {
+			guard let parent = node.parent, parent.representedObject is Folder else {
 				completion?()
 				return
 			}