fix(Payment Reconciliation): clear child tables on company/party change (#28153)

erpnext/accounts/utils.py

@@ -450,7 +450,8 @@ def update_reference_in_journal_entry(d, journal_entry, do_not_save=False):
 
 	# new row with references
 	new_row = journal_entry.append("accounts")
-	new_row.update(jv_detail.as_dict().copy())
+
+	new_row.update((frappe.copy_doc(jv_detail)).as_dict())
 
 	new_row.set(d["dr_or_cr"], d["allocated_amount"])
 	new_row.set('debit' if d['dr_or_cr'] == 'debit_in_account_currency' else 'credit',