hr_payslip_paid/view/hr_payslip_workflow.xml

<?xml version='1.0' encoding='UTF-8'?>
<openerp>
    <data>
        <record id="act_paid" model="workflow.activity">
            <field name="wkf_id" ref="hr_payroll.wkf"/>
            <field name="name">paid</field>
            <field name="action">write({'state': 'paid'})</field>
            <field name="kind">function</field>
            <field name="signal_send">subflow.paid</field>
        </record>
        
         <record model="workflow.activity" id="act_open_test">
            <field name="wkf_id" ref="hr_payroll.wkf"/>
            <field name="name">re-open</field>
            <field name="action">write({'state':'done'})</field>
            <field name="kind">function</field>
        </record>
        
        <record id="workflow_transition_act_done_to_act_paid" model="workflow.transition">
            <field name="act_from" ref="hr_payroll.act_done"/>
            <field name="act_to" ref="act_paid"/>
            <field name="trigger_model">account.move.line</field>
            <field name="trigger_expr_id">move_line_id_payment_get()</field>
            <field name="condition">reconciled</field>
        </record>
        
        <record id="workflow_transition_act_paid_to_act_copen_test" model="workflow.transition">
            <field name="act_from" ref="act_paid"/>
            <field name="act_to" ref="act_open_test"/>
            <field name="signal"/>
            <field name="condition">not reconciled</field>
        </record>
        
        <record id="workflow_transition_open_test_to_paid" model="workflow.transition">
            <field name="act_from" ref="act_open_test"/>
            <field name="act_to" ref="act_paid"/>
            <field name="trigger_model">account.move.line</field>
            <field name="trigger_expr_id">move_line_id_payment_get()</field>
            <field name="condition">reconciled</field>
        </record>
        
        <record id="workflow_transition_act_paid_to_act_cancel" model="workflow.transition">
            <field name="signal">cancel_sheet</field>
            <field name="act_from" ref="act_open_test"/>
            <field name="act_to" ref="hr_payroll.act_cancel"/>
            <field name="condition">True</field>
        </record>
    </data>
</openerp>