ALL flag in variable header not working

[iantic]

-- VARIABLE: {
-- name: "topic",
-- type: "select",
-- database_options: {
-- table: "ost_help_topic",
-- column: "topic_id",
-- display: "topic",
-- all: true
-- }

builds the following query:

SELECT
*
FROM
ost_ticket
where
topic_id = 'ALL'
...

so it litterally passes 'ALL' instead of omitting the condition.

Addidionally, as noted in #260 , this property cannot be turned off

[aiso-net]

This is why I do in the report:
{% if facility != 'ALL' %}
AND facilities.id = {{facility}}
{% endif %}