Can not execute action_draft because odoo base validation with taxes in payment lines

[odoo-mastercore]

account-payment/account_withholding/models/account_payment.py

Line 78 in c99319c

liquidity_lines.write({

When try to action_draft Odoo raise

"You cannot modify the taxes related to a posted journal item, you should reset the journal entry to draft to do so."

We workaround this using _write and None for vals:

def action_draft(self):
''' posted -> draft '''

    withholdings = self.filtered(lambda x: x.tax_withholding_id)
    for withholding in withholdings:
        liquidity_lines, counterpart_lines, writeoff_lines = withholding._seek_for_lines()
        liquidity_lines._write({
            'tax_repartition_line_id': None,
            'tax_line_id': None,
        })

    return super().action_draft()