join status explicitly triggered by status filter

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

@@ -65,6 +65,10 @@ class Queries::WorkPackages::Filter::StatusFilter < Queries::WorkPackages::Filte
     true
   end
 
+  def joins
+    :status
+  end
+
   private
 
   def all_statuses

app/models/query/results.rb

@@ -41,9 +41,9 @@ class ::Query::Results
   def work_package_count
     work_package_scope
       .joins(all_filter_joins)
-      .includes(:status, :project)
+      .includes(:project)
       .where(query.statement)
-      .references(:statuses, :projects)
+      .references(:projects)
       .count
   rescue ::ActiveRecord::StatementInvalid => e
     raise ::Query::StatementInvalid.new(e.message)
@@ -79,7 +79,7 @@ class ::Query::Results
   end
 
   def all_includes
-    (%i(status project) +
+    (%i(project) +
       includes_for_columns(include_columns)).uniq
   end