Change log doesn't work with real dataset (ie. more than 50 changes)

Contact Change log tab shows as blank if for all contacts EXCEPT for the first 50 to be changed after turning on Change logging.

e.g.
http://sandbox.drupal.civicrm.org/civicrm/contact/view?reset=1&cid=106

To reproduce -
1) turn on logging
2) update > 50 contacts via batch profile (contact fields only)
3) update a contact not already updated (contact fields only) - the change will not show on their log

The contact log is left joined agains the first 50 non-initialization entries in each table so if you change tables other than contact you will need to create a load more data to do this test.

Code is coming from

CRM_Logging_ReportSummary::postProcess

foreach ( $this->_logTables as $entity => $detail ) {
$tableName = CRM_Utils_Array::value('table_name', $detail, $entity);
$clause = CRM_Utils_Array::value('entity_table', $detail);
$clause = $clause ? "entity_table = 'civicrm_contact' AND" : null;
$sql = "
INSERT IGNORE INTO civicrm_temp_civireport_logsummary ( contact_id )
SELECT DISTINCT {$detail['fk']} FROM `{$this->loggingDB}`.{$tableName}
WHERE {$clause} log_action != 'Initialization' {$logDateClause} LIMIT {$rowCount}";
CRM_Core_DAO::executeQuery($sql);
}

This table then becomes the 'subject' of an INNER JOIN

"SELECT SQL_CALC_FOUND_ROWS entity_log_civireport.id AS log_civicrm_entity_id, entity_log_civireport.log_action AS log_civicrm_entity_log_action, entity_log_civireport.log_type AS log_civicrm_entity_log_type, entity_log_civireport.log_user_id AS log_civicrm_entity_log_user_id, entity_log_civireport.log_date AS log_civicrm_entity_log_date, modified_contact_civireport.display_name AS log_civicrm_entity_altered_contact, modified_contact_civireport.id AS log_civicrm_entity_altered_contact_id, entity_log_civireport.log_conn_id AS log_civicrm_entity_log_conn_id, modified_contact_civireport.is_deleted AS log_civicrm_entity_is_deleted, altered_by_contact_civireport.display_name AS altered_by_contact_display_name
FROM `wct`.log_civicrm_entity_tag entity_log_civireport
INNER JOIN civicrm_temp_civireport_logsummary temp ON (entity_log_civireport.entity_id = temp.contact_id) ......."