fix(stock): Grab posting date/time from SABB (backport #43493) (#43502)

fix(stock): Grab posting date/time from SABB (#43493)

(cherry picked from commit ade121dac6)

Co-authored-by: Corentin Forler <10946971+cogk@users.noreply.github.com>

erpnext/stock/stock_ledger.py

@@ -1740,6 +1740,9 @@ def get_valuation_rate(
 
 	# Get moving average rate of a specific batch number
 	if warehouse and serial_and_batch_bundle:
+		sabb = frappe.db.get_value(
+			"Serial and Batch Bundle", serial_and_batch_bundle, ["posting_date", "posting_time"], as_dict=True
+		)
 		batch_obj = BatchNoValuation(
 			sle=frappe._dict(
 				{
@@ -1747,6 +1750,8 @@ def get_valuation_rate(
 					"warehouse": warehouse,
 					"actual_qty": -1,
 					"serial_and_batch_bundle": serial_and_batch_bundle,
+					"posting_date": sabb.posting_date,
+					"posting_time": sabb.posting_time,
 				}
 			)
 		)