CRM_Mailing_BAO_Mailing::report (and possibly other functions) are mis-categorizing mailing groups due to change in group_type string case

Symptom I noticed is when viewing the CiviMail Mailing Report (click on Report action link from a draft, scheduled or sent mailing) [civicrm/mailing/report?mid=1&reset=1] - the report shows both Included and Excluded groups as "Excluded".

I narrowed this down to the code snippet below from CRM_Mailing_BAO_Mailing::report - which is expecting group_type = 'Included', 'Excluded' or 'Base'. In my DB, mailing_group.group_type strings are lower case (e.g. 'included', 'excluded'). This causes the if statement to fail.

There are a few other spots in Mailing_BAO which also expect mixed case and I suspect they are also messing up. I tried to determine where the group_type strings are set - but couldn't find it.

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/* Rename hidden groups */

if ($mailing->group_hidden == 1)

{ $row['name'] = "Search Results"; }

if ($mailing->group_type == 'Include')

{ $report['group']['include'][] = $row; }

elseif ($mailing->group_type == 'Base')

{ $report['group']['base'][] = $row; }

else

{ $report['group']['exclude'][] = $row; }