fix: bug that did not allow calendar update feeds workflow activity to complete

docs/changelog/7.x.x.txt

@@ -1,4 +1,6 @@
 7.4.9
+ - fix: Bug that did not allow Calendar Update Feeds workflow activity to 
+   complete
 
 7.4.8
  - fix: Syndicated Content doesn't display all items with multiple feeds in interleaved mode

lib/WebGUI/Workflow/Activity/CalendarUpdateFeeds.pm

@@ -89,7 +89,7 @@ sub execute {
     my $dt      = WebGUI::DateTime->new($session, $startTime)->toMysql;
 
     local $JSON::UnMapping = 1;
-    my $eventList;
+    my $eventList   = [];
     my $feedList;
     if ($instance->getScratch('events')) {
         $eventList = jsonToObj($instance->getScratch('events'));