[FIX] account: Remove invoice_pdf_report_id on reset to draft

Current Behavior:
`is_move_sent` is not updated if there is an existing `invoice_pdf_report_id`.

Purpose of this PR:
Remove the `invoice_pdf_report_id` when resetting invoice to draft so that when the invoice is sent again (using the Send and Print wizard),
`is_move_sent` is updated.

Steps to Reproduce on Runbot:
1) Create and Send and Print invoice. (`is_move_sent` is set to True)
2) Reset invoice to draft. (`is_move_sent` is set to False)
3) Confirm and resend invoice using Send and Print wizard. (`is_move_sent` remains False, expected to be changed to True)

Notes:
This PR #116698 added a _compute in Odoo 16, however it was removed in Odoo 17 with this PR #125392
`is_move_sent` is not updated when on the second Send and Print because of the existing `invoice_pdf_report_id` (generated and linked during the first Send and Print).

opw-3849109

addons/account/models/account_move.py

@@ -4152,7 +4152,7 @@ def button_draft(self):
             move.mapped('line_ids.analytic_line_ids').unlink()
 
         self.mapped('line_ids').remove_move_reconcile()
-        self.write({'state': 'draft', 'is_move_sent': False})
+        self.write({'state': 'draft'})
 
     def button_request_cancel(self):
         """ Hook allowing the localizations to request a cancellation from the government before cancelling the invoice. """

addons/account/tests/test_account_move_send.py

@@ -1060,3 +1060,11 @@ def test_send_and_print_only(self):
 
         self.assertTrue(self._get_mail_message(invoice))  # email was sent
         self.assertEqual(res['type'], 'ir.actions.act_window_close')  # the download which is a default value didn't happen
+
+    def test_out_invoice_is_move_sent(self):
+        invoice = self.init_invoice(move_type='out_invoice', amounts=[1000.0], post=True)
+        option_vals = self.env['account.move.send']._get_wizard_vals_restrict_to({'checkbox_send_mail': True})
+        wizard = self.create_send_and_print(invoice, **option_vals)
+
+        wizard.action_send_and_print()
+        self.assertTrue(invoice.is_move_sent)