[FIX] account_reconciliation_widget: Hide own reconcilable items

If the journal destination account is reconcilable, as the journal entry
is pre-generated before reconciling, the line is appearing in the
reconciliation widget, provoking user confusion and error if that one
is selected.

We explicitly exclude in the matching domain for avoiding the problem.

TT42983

account_reconciliation_widget/models/reconciliation_widget.py

@@ -794,6 +794,8 @@ class AccountReconciliation(models.AbstractModel):
             "&",
             "&",
             "&",
+            "&",
+            ("id", "not in", st_line.move_id.line_ids.ids),
             ("reconciled", "=", False),
             ("account_id.reconcile", "=", True),
             ("balance", "!=", 0.0),