gistfile1.txt

diff --git a/apps/editors/models.py b/apps/editors/models.py
index 58eb5d7..a6d5962 100644
--- a/apps/editors/models.py
+++ b/apps/editors/models.py
@@ -216,7 +216,10 @@ class EditorSubscription(amo.models.ModelBase):
 
 
 def send_notifications(sender, instance, **kw):
-    if kw.get('raw') or not kw.get('created') or instance.is_beta:
+    # Using instance.is_beta uses all_files which is heavily cached and
+    # breaks multiple unit tests.
+    if (kw.get('raw') or not kw.get('created') or
+        filter(lambda f: f.status == amo.STATUS_BETA, instance.files.all())):
         return