fix(patch): sle.serial_no = "\n" causes incorrect queue (#29306)

This happens due to old data.

erpnext/patches.txt

@@ -279,7 +279,7 @@ erpnext.patches.v13_0.add_custom_field_for_south_africa #2
 erpnext.patches.v13_0.update_recipient_email_digest
 erpnext.patches.v13_0.shopify_deprecation_warning
 erpnext.patches.v13_0.remove_bad_selling_defaults
-erpnext.patches.v13_0.trim_whitespace_from_serial_nos
+erpnext.patches.v13_0.trim_whitespace_from_serial_nos  # 16-01-2022
 erpnext.patches.v13_0.migrate_stripe_api
 erpnext.patches.v13_0.reset_clearance_date_for_intracompany_payment_entries
 erpnext.patches.v13_0.einvoicing_deprecation_warning

erpnext/patches/v13_0/trim_whitespace_from_serial_nos.py

@@ -9,13 +9,15 @@ def execute():
 			from `tabStock Ledger Entry`
 			where
 				is_cancelled = 0
-				and (serial_no like %s or serial_no like %s or serial_no like %s or serial_no like %s)
+				and ( serial_no like %s or serial_no like %s or serial_no like %s or serial_no like %s
+					or serial_no = %s )
 			""",
 			(
 				" %",    # leading whitespace
 				"% ",    # trailing whitespace
 				"%\n %", # leading whitespace on newline
 				"% \n%", # trailing whitespace on newline
+				"\n",    # just new line
 			),
 			as_dict=True,
 		)

erpnext/stock/stock_ledger.py

@@ -105,6 +105,7 @@ def get_args_for_future_sle(row):
 
 def validate_serial_no(sle):
 	from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
+
 	for sn in get_serial_nos(sle.serial_no):
 		args = copy.deepcopy(sle)
 		args.serial_no = sn
@@ -423,6 +424,8 @@ def append_future_sle_for_dependant(self, dependant_sle, entries_to_fix):
 		return sorted(entries_to_fix, key=lambda k: k['timestamp'])
 
 	def process_sle(self, sle):
+		from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
+
 		# previous sle data for this warehouse
 		self.wh_data = self.data[sle.warehouse]
 
@@ -437,7 +440,7 @@ def process_sle(self, sle):
 		if not self.args.get("sle_id"):
 			self.get_dynamic_incoming_outgoing_rate(sle)
 
-		if sle.serial_no:
+		if get_serial_nos(sle.serial_no):
 			self.get_serialized_values(sle)
 			self.wh_data.qty_after_transaction += flt(sle.actual_qty)
 			if sle.voucher_type == "Stock Reconciliation":