Update factory bot and set uprn_selection to uprn as in derived fields

spec/factories/lettings_log.rb

@@ -172,7 +172,7 @@ FactoryBot.define do
         if log.startdate >= Time.zone.local(2024, 4, 1)
           log.nationality_all_group = 826
           log.uprn = evaluator.uprn || "10033558653"
-          log.uprn_selection = evaluator.uprn_selection || "10033558653"
+          log.uprn_selection = evaluator.uprn_selection || evaluator.uprn || "10033558653"
         end
       end
     end

spec/factories/sales_log.rb

@@ -173,7 +173,7 @@ FactoryBot.define do
           log.nationality_all_group = 826
           log.nationality_all_buyer2_group = 826
           log.uprn = evaluator.uprn || "10033558653"
-          log.uprn_selection = evaluator.uprn_selection || "10033558653"
+          log.uprn_selection = evaluator.uprn_selection || evaluator.uprn || "10033558653"
         end
         if log.saledate >= Time.zone.local(2025, 4, 1)
           log.relat2 = "X" if log.relat2 == "C"