Fix PHP Notice: Undefined index: isForum in /src/Protocol/ActivityPub/Processor...

diff --git a/src/Protocol/ActivityPub/Processor.php b/src/Protocol/ActivityPub/Processor.php
index 486fe6daae4c60d0e827b0ee196e8c4a2f5f0c18..5c53f27000ae934482ffdd09c56b80cb28dc3358 100644 (file)
--- a/src/Protocol/ActivityPub/Processor.php
+++ b/src/Protocol/ActivityPub/Processor.php
@@ -602,7 +602,7 @@ class Processor
                                continue;
                        }
 
-                       if (!$item['isForum'] && ($receiver != 0) && ($item['gravity'] == GRAVITY_PARENT) &&
+                       if (!($item['isForum'] ?? false) && ($receiver != 0) && ($item['gravity'] == GRAVITY_PARENT) &&
                                ($item['post-reason'] == Item::PR_BCC) && !Contact::isSharingByURL($activity['author'], $receiver)) {
                                Logger::info('Top level post via BCC from a non sharer, ignoring', ['uid' => $receiver, 'contact' => $item['contact-id']]);
                                continue;