Set all state as default for epics

ee/app/controllers/groups/epics_controller.rb

@@ -9,6 +9,7 @@ class Groups::EpicsController < Groups::ApplicationController
   skip_before_action :labels
 
   def index
+    set_default_state
     @epics = @issuables
 
     respond_to do |format|
@@ -65,4 +66,10 @@ class Groups::EpicsController < Groups::ApplicationController
   def preload_for_collection
     @preload_for_collection ||= [:group, :author]
   end
+
+  # we need to override the default state which is opened for now because we don't have
+  # states for epics and need all as default for navigation to work correctly
+  def set_default_state
+    params[:state] = 'all'
+  end
 end

ee/app/finders/epics_finder.rb

@@ -19,9 +19,11 @@ class EpicsFinder < IssuableFinder
     execute.count
   end
 
-  # we don't have states for epics for now but need this method
+  # we don't have states for epics for now but need counts for all and opened
   def count_by_state
-    { all: row_count }
+    {
+      all: row_count
+    }
   end
 
   def group