Upgrade/Incremental/sql/3.4.alpha1.mysql duplicates existing activity type option value for Add Client To Case

Upgrade/Incremental/sql/3.4.alpha1.mysql does the following to generate the option value for the new "Add Client To Case" activity type:

SELECT @value := MAX(value) FROM civicrm_option_value WHERE option_group_id = @option_group_id_act;
SELECT @caseCompId := max(id) FROM civicrm_component where name = 'CiviCase';
INSERT INTO civicrm_option_value
(option_group_id,

{localize field='label'}

label

{/localize}, value, name, weight, {localize field='description'}description{/localize}

, is_active, component_id) VALUES
(@option_group_id_act,

{localize}'Add Client To Case'{/localize}, @value, 'Add Client To Case', @weight, {localize}

NULL

{/localize}

, 1, @caseCompId );

So it re-uses the current maximum ID. Presumably should use @value+1 .

Dave J