Move `includes` method to OrBaseFilter.

app/models/queries/work_packages/filter/or_base_filter.rb

@@ -87,6 +87,10 @@ class Queries::WorkPackages::Filter::OrBaseFilter < Queries::WorkPackages::Filte
       filter.values = values
     end
   end
+  
+  def includes
+    filters.map(&:includes).flatten.uniq.reject(&:blank?)
+  end
 
   def ar_object_filter?
     false

app/models/queries/work_packages/filter/search_filter.rb

@@ -59,10 +59,6 @@ class Queries::WorkPackages::Filter::SearchFilter < Queries::WorkPackages::Filte
     I18n.t('label_search')
   end
 
-  def includes
-    filters.map(&:includes).flatten.uniq.reject(&:blank?)
-  end
-
   def filter_configurations
     list = CE_FILTERS
     list + EE_TSV_FILTERS if EnterpriseToken.allows_to?(:attachment_filters) && OpenProject::Database.allows_tsv?