From 7f341da9eb11236ba0c63f3e8a2c422dd1724f06 Mon Sep 17 00:00:00 2001
From: Chris Garrett <cgarrett@linkedin.com>
Date: Mon, 18 Mar 2019 11:54:40 -0700
Subject: [PATCH] fix issues with getting tags on destroyed objects

---
 packages/@ember/-internals/metal/lib/tags.ts | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/packages/@ember/-internals/metal/lib/tags.ts b/packages/@ember/-internals/metal/lib/tags.ts
index 9150f85b484..d23b689dc66 100644
--- a/packages/@ember/-internals/metal/lib/tags.ts
+++ b/packages/@ember/-internals/metal/lib/tags.ts
@@ -43,10 +43,13 @@ export function tagForProperty(object: any, propertyKey: string | symbol, _meta?
 export function tagFor(object: any | null, _meta?: Meta): Tag {
   if (typeof object === 'object' && object !== null) {
     let meta = _meta === undefined ? metaFor(object) : _meta;
-    return meta.writableTag(makeTag);
-  } else {
-    return CONSTANT_TAG;
+
+    if (!meta.isMetaDestroyed()) {
+      return meta.writableTag(makeTag);
+    }
   }
+
+  return CONSTANT_TAG;
 }
 
 export let dirty: (tag: Tag) => void;