fix(manufacturing): rollback before marking BOM Creator failed (Postgres)

create_production_plan_bom (background job) save+submits BOMs in a loop; on failure the except runs self.db_set(status=Failed, error_log) with no rollback, raising InFailedSqlTransaction on Postgres so status is never set. Full frappe.db.rollback() at the top of the except. No-op on MariaDB.

erpnext/manufacturing/doctype/bom_creator/bom_creator.py

@@ -313,6 +313,7 @@ class BOMCreator(Document):
 
 			frappe.msgprint(_("BOMs created successfully"))
 		except Exception:
+			frappe.db.rollback()
 			traceback = frappe.get_traceback(with_context=True)
 			self.db_set(
 				{