From 1898c0c351c8f559b59ccd087cead8d2c449d1e2 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sun, 20 Sep 2020 04:49:48 +0000
Subject: [PATCH] Fix notice "Undefined index: gravity"

---
 src/Protocol/ActivityPub/Receiver.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Protocol/ActivityPub/Receiver.php b/src/Protocol/ActivityPub/Receiver.php
index ea5251438d..6910ee11c2 100644
--- a/src/Protocol/ActivityPub/Receiver.php
+++ b/src/Protocol/ActivityPub/Receiver.php
@@ -487,6 +487,10 @@ class Receiver
 					$object_data['thread-completion'] = true;
 
 					$item = ActivityPub\Processor::createItem($object_data);
+					if (empty($item)) {
+						return;
+					}
+
 					$item['post-type'] = Item::PT_ANNOUNCEMENT;
 					ActivityPub\Processor::postItem($object_data, $item);