taxonomy_update_7005 may break on incorrect values of sticky field

taxonomy_update_7005() makes an assumption that sticky field has only boolean values:

        // Update the {taxonomy_index} table.
        db_insert('taxonomy_index')
          ->fields(array('nid', 'tid', 'sticky', 'created',))
          ->values(array($record->nid, $record->tid, $record->sticky, $record->created))
          ->execute();
        }

(taxonomy.install, starting from line 769)
Schema definition:

  $schema['taxonomy_index'] = array(
    'description' => 'Maintains denormalized information about node/term relationships.',
    'fields' => array(
      ...
      'sticky' => array(
        'description' => 'Boolean indicating whether the node is sticky.',
        'type' => 'int',
        'not null' => FALSE,
        'default' => 0,
        'size' => 'tiny',

However, sticky field in {node} table is of type int (not tiny int), and contrib modules may set arbitrary int values (this is not theoretical assumption).
Attached patch solves the problem by adjusting {taxonomy_index}.sticky field size
Possible other solution: make {node}.sticky tiny int or force taxonomy_update_7005 to use int=>bool conversion when inserting into {taxonomy_index}
This issue is not relevant for 8.x, so opening it directly for 7.x