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50
<xpath expr="/form/notebook//page[@string='Sales Order']//field[@name='order_line']/form/notebook//page[@string='History']" position="replace">
48
57
<xpath expr="/form/group/field[@name='client_order_ref']" position="attributes">
49
58
<attribute name="attrs">{'readonly': ['|', ('partner_type', 'not in', ['external', 'esc']), ('state', 'not in', ['draft', 'validated'])]}</attribute>