[FIX] account: manage multiple ids in _is_end_of_seq_chain

`_deduce_sequence_number_reset` should be used on maximum one record.
That function is called from `_get_sequence_format_param` in
`_is_end_of_seq_chain` but that function was possibly calling it on
multiple ids.

https://runbot.odoo.com/runbot/build/10315612

closes odoo/odoo#77811

X-original-commit: 10b880ae999643a4e3e9328d96196a19b0cf7ac6
Signed-off-by: oco-odoo <oco-odoo@users.noreply.github.com>
Signed-off-by: William André (wan) <wan@odoo.com>

addons/account/models/sequence_mixin.py

@@ -264,7 +264,7 @@ class SequenceMixin(models.AbstractModel):
         """
         batched = defaultdict(lambda: {'last_rec': self.browse(), 'seq_list': []})
         for record in self:
-            seq_format, format_values = self._get_sequence_format_param(record[record._sequence_field])
+            seq_format, format_values = record._get_sequence_format_param(record[record._sequence_field])
             seq = format_values.pop('seq')
             batch = batched[(seq_format, frozendict(format_values))]
             batch['seq_list'].append(seq)