A custom report will trigger several php Notices - Undefined Index: no_display and type

When creating a custom report utilizing the protected $_customGroupExtends() functionality three php Notices will appear. This is how I implemented by customGroup,

protected $_customGroupExtends = array( 'Individual', 'Activity' );

Doing so triggers the following:

Notice: Undefined index: no_display in CRM_Report_Form_LeaveReport->select() (line 229 of /vpfa-dev/fa-drupal7/fmlaProject/sites/default/files/civiCustomCode/CRM/Report/Form/LeaveReport.php).
Notice: Undefined index: no_display in CRM_Report_Form_LeaveReport->select() (line 224 of /vpfa-dev/fa-drupal7/fmlaProject/sites/default/files/civiCustomCode/CRM/Report/Form/LeaveReport.php).
Notice: Undefined index: type in CRM_Report_Form_LeaveReport->where() (line 292 of /vpfa-dev/fa-drupal7/fmlaProject/sites/default/files/civiCustomCode/CRM/Report/Form/LeaveReport.php).

The custom report is based on the provided ActivitySummary.php report found in CRM/Report/Form/

I am unable to test this on the d7 sandbox because it is a custom report.