Regression: View Activities on contact dashboard when there is an activity with a target contact but that target contact cannot be seen by the logged in user
We have recently experieneced an issue where there was an activity record that had a target contact assigned to it but the logged in user couldn't see the target nad it broke the loading of the activities tab because it tried calling CRM_Contact_BAO_Contact::getContactType on NULL (L2573 of CRM/Activity/BAO/Activity.php)
This looks like a regression from around 5.13