Correctly destroy viewers

lib/carto/export/data_import_exporter.rb

@@ -19,7 +19,7 @@ module Carto
     def build_data_import_from_hash(exported_data_import)
       return nil unless exported_data_import
 
-      di = DataImport.new(exported_data_import.slice(*EXPORTED_DATA_IMPORT_ATTRIBUTES))
+      di = DataImport.new(exported_data_import.slice(*EXPORTED_DATA_IMPORT_ATTRIBUTES).except(:id))
 
       di.log = build_log_from_hash(exported_data_import[:log])
       di.external_data_imports = exported_data_import[:external_data_imports].map do |edi|

spec/services/carto/user_metadata_export_service_spec.rb

@@ -61,6 +61,8 @@ describe Carto::UserMetadataExportService do
   end
 
   def destroy_user(user = @user)
+    user.viewer = false
+    user.save
     gum = CartoDB::GeocoderUsageMetrics.new(user.username)
     $users_metadata.DEL(gum.send(:user_key_prefix, :geocoder_here, :success_responses, DateTime.now))