Update tests

spec/services/imports/lettings_logs_field_import_service_spec.rb

@@ -481,7 +481,7 @@ RSpec.describe Imports::LettingsLogsFieldImportService do
       before do
         Imports::LettingsLogsImportService.new(storage_service, logger).create_logs(fixture_directory)
         lettings_log_file.rewind
-        lettings_log.update!(reason: nil)
+        lettings_log.update!(reason: nil, values_updated_at: nil)
         lettings_log_xml.at_xpath("//xmlns:Q9a").content = "47"
       end
 
@@ -489,6 +489,7 @@ RSpec.describe Imports::LettingsLogsFieldImportService do
         expect(logger).to receive(:info).with(/lettings log \d+'s reason value has been set to 47/)
         expect { import_service.send(:update_reason, lettings_log_xml) }
           .to(change { lettings_log.reload.reason }.from(nil).to(47))
+        expect(lettings_log.values_updated_at).not_to be_nil
       end
     end
 
@@ -498,7 +499,7 @@ RSpec.describe Imports::LettingsLogsFieldImportService do
       before do
         Imports::LettingsLogsImportService.new(storage_service, logger).create_logs(fixture_directory)
         lettings_log_file.rewind
-        lettings_log.update!(reason: 18)
+        lettings_log.update!(reason: 18, values_updated_at: nil)
         lettings_log_xml.at_xpath("//xmlns:Q9a").content = "47"
       end
 
@@ -506,6 +507,7 @@ RSpec.describe Imports::LettingsLogsFieldImportService do
         expect(logger).to receive(:info).with(/lettings log \d+ has a value for reason, skipping update/)
         expect { import_service.send(:update_reason, lettings_log_xml) }
           .not_to(change { lettings_log.reload.reason })
+        expect(lettings_log.values_updated_at).to be_nil
       end
     end
 
@@ -515,7 +517,7 @@ RSpec.describe Imports::LettingsLogsFieldImportService do
       before do
         Imports::LettingsLogsImportService.new(storage_service, logger).create_logs(fixture_directory)
         lettings_log_file.rewind
-        lettings_log.update!(reason: nil)
+        lettings_log.update!(reason: nil, values_updated_at: nil)
         lettings_log_xml.at_xpath("//xmlns:Q9a").content = "20"
       end
 
@@ -529,6 +531,7 @@ RSpec.describe Imports::LettingsLogsFieldImportService do
           expect(logger).to receive(:info).with(/lettings log \d+'s reasonother value has been set to other/)
           expect { import_service.send(:update_reason, lettings_log_xml) }
             .to(change { lettings_log.reload.reason }.from(nil).to(20))
+          expect(lettings_log.values_updated_at).not_to be_nil
         end
       end
 
@@ -537,6 +540,7 @@ RSpec.describe Imports::LettingsLogsFieldImportService do
           expect(logger).to receive(:info).with(/lettings log \d+'s reason is other but other reason is not provided, skipping update/)
           expect { import_service.send(:update_reason, lettings_log_xml) }
             .not_to(change { lettings_log.reload.reason })
+          expect(lettings_log.values_updated_at).to be_nil
         end
       end
     end