Webform update fails on database update 7.x-4.9

While updating from Webform 7.x-4.7 to webform 7.x-4.9

The following updates returned messages

webform module

Update #7423
Failed: PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '384-1-0' for key 'PRIMARY': INSERT INTO {webform_conditional_actions} (nid, rgid, action, target_type, target, argument) SELECT c.nid AS nid, c.rgid AS rgid, c.action AS action, c.target_type AS target_type, c.target AS target, '' AS argument FROM {webform_conditional} c ORDER BY nid ASC, rgid ASC; Array ( ) in webform_update_7423()

select * from webform_conditional_actions

'384', '1', '0', 'component', '18', '1', 'show', ''
'384', '2', '0', 'component', '21', '1', 'show', ''
'384', '4', '0', 'component', '24', '1', 'show', ''
'384', '6', '0', 'component', '35', '1', 'show', ''
'384', '8', '0', 'component', '41', '1', 'show', ''
'384', '10', '0', 'component', '48', '1', 'show', ''
'384', '12', '0', 'component', '53', '1', 'show', ''
'384', '14', '0', 'component', '58', '1', 'show', ''
'477', '0', '0', 'component', '12', '1', 'show', ''
'477', '1', '0', 'component', '13', '1', 'show', ''
'477', '2', '0', 'component', '7', '0', 'show', ''
'477', '3', '0', 'component', '10', '1', 'show', ''

select * from webform_conditional

'384', '1', NULL, 'hide', 'component', '18', '-8'
'384', '2', NULL, 'hide', 'component', '21', '-8'
'384', '4', NULL, 'hide', 'component', '24', '-8'
'384', '6', NULL, 'hide', 'component', '35', '-8'
'384', '8', NULL, 'hide', 'component', '41', '-8'
'384', '10', NULL, 'hide', 'component', '48', '-8'
'384', '12', NULL, 'hide', 'component', '53', '-8'
'384', '14', NULL, 'hide', 'component', '58', '-6'
'477', '0', NULL, 'hide', 'component', '12', '-1'
'477', '1', NULL, 'hide', 'component', '13', '0'
'477', '2', NULL, 'show', 'component', '7', '1'
'477', '3', NULL, 'hide', 'component', '10', '2'

So all of these entries already exist. What's going on?