hook_post Profile.create: add check to avoid odd bugs

activityprofile.php

@@ -194,7 +194,13 @@ function activityprofile_civicrm_post($op, $objectName, $objectId, &$objectRef)
   // but that code only kicks-in when using remoteform and Activity fields.
   // This makes it possible to set the contact-type/subtype if using just a plain profile.
   if ($objectName == 'Profile' && $op == 'create') {
-    $profile_id = $objectRef['uf_group_id'];
+    // Probably never happens, just a precaution
+    if (empty($objectRef->uf_group_id)) {
+      return;
+    }
+
+    $profile_id = $objectRef->uf_group_id;
+
     $ctype = Civi::settings()->get('activityprofile_' . $profile_id . '_ctype');
     $csubtype = Civi::settings()->get('activityprofile_' . $profile_id . '_csubtype');