Fix deletion attempts on dropped tables

spec/support/db_cleaner.rb

@@ -28,11 +28,11 @@ RSpec.configure do |config|
   end
 
   config.before(:each, :js) do
-    DatabaseCleaner.strategy = :deletion
+    DatabaseCleaner.strategy = :deletion, { cache_tables: false }
   end
 
   config.before(:each, :delete) do
-    DatabaseCleaner.strategy = :deletion
+    DatabaseCleaner.strategy = :deletion, { cache_tables: false }
   end
 
   config.before(:each, :migration) do