Is "sourcemodel eav/entity_attribute_source_boolean not allowed for frontend input type: boolean" a valid EAV model check issue?

[loekvangool]

I'm hit with this error:

sourcemodel eav/entity_attribute_source_boolean not allowed for frontend input type: boolean - the frontend input type should be select

Triggered by:

if ($sourceModel != '' && ! in_array($attribute->getFrontendInput(), $sourceModelsAllowed)) {
    $additionalMessage = null;
    if($attribute->getSourceModel() == 'eav/entity_attribute_source_boolean' && $attribute->getFrontendInput() != 'select') {
        $additionalMessage = ' - the frontend input type should be select';
    }
    $error .= '<error>sourcemodel ' . $attribute->getSourceModel() . ' not allowed for frontend input type: ' . $attribute->getFrontendInput() . $additionalMessage . '</error>';
}

However, this error applies to any boolean attribute created by vanilla Magento 1.9 / OpenMage 19. Also it seems to functionally work fine. Are we sure this is an actual problem?

[sprankhub]

Hmm good question. On a rather clean instance, I see one attribute with a boolean frontend input:

mysql> SELECT * FROM eav_attribute WHERE frontend_input = 'boolean';
+--------------+----------------+---------------------------+-----------------+-----------------------------------------+--------------+---------------+----------------+----------------+------------------------------------------------+----------------+--------------+-------------+-----------------+---------------+-----------+------+
| attribute_id | entity_type_id | attribute_code            | attribute_model | backend_model                           | backend_type | backend_table | frontend_model | frontend_input | frontend_label                                 | frontend_class | source_model | is_required | is_user_defined | default_value | is_unique | note |
+--------------+----------------+---------------------------+-----------------+-----------------------------------------+--------------+---------------+----------------+----------------+------------------------------------------------+----------------+--------------+-------------+-----------------+---------------+-----------+------+
|           35 |              1 | disable_auto_group_change | NULL            | customer/attribute_backend_data_boolean | static       | NULL          | NULL           | boolean        | Disable Automatic Group Change Based on VAT ID | NULL           | NULL         |           0 |               0 | NULL          |         0 | NULL |
+--------------+----------------+---------------------------+-----------------+-----------------------------------------+--------------+---------------+----------------+----------------+------------------------------------------------+----------------+--------------+-------------+-----------------+---------------+-----------+------+
1 row in set (0,00 sec)

So boolean seems to be fine as well. @peterjaap, any thoughts (since you added that specific message)?