Fix filtering issues by "No Label"

app/services/boards/issues/list_service.rb

@@ -3,7 +3,8 @@ module Boards
     class ListService < Boards::BaseService
       def execute
         issues = IssuesFinder.new(user, filter_params).execute
-        issues = without_board_labels(issues) if list.backlog?
+        issues = without_board_labels(issues) unless list.label?
+        issues = with_list_label(issues) if list.label?
         issues
       end
 
@@ -16,7 +17,6 @@ module Boards
       def filter_params
         set_default_scope
         set_default_sort
-        set_list_label
         set_project
         set_state
 
@@ -31,13 +31,6 @@ module Boards
         params[:sort] = 'priority'
       end
 
-      def set_list_label
-        return unless list.label?
-
-        params[:label_name] ||= []
-        params[:label_name] << list.label_name
-      end
-
       def set_project
         params[:project_id] = project.id
       end
@@ -58,6 +51,13 @@ module Boards
                    .where(label_id: board_label_ids).limit(1).arel.exists
         )
       end
+
+      def with_list_label(issues)
+        issues.where(
+          LabelLink.where("label_links.target_type = 'Issue' AND label_links.target_id = issues.id")
+                   .where("label_links.label_id = ?", list.label_id).limit(1).arel.exists
+        )
+      end
     end
   end
 end

spec/services/boards/issues/list_service_spec.rb

@@ -39,7 +39,7 @@ describe Boards::Issues::ListService, services: true do
     it 'delegates search to IssuesFinder' do
       params = { id: list1.id }
 
-      expect_any_instance_of(IssuesFinder).to receive(:execute).once
+      expect_any_instance_of(IssuesFinder).to receive(:execute).once.and_call_original
 
       described_class.new(project, user, params).execute
     end