Fix bug

app/helpers/timelog_helper.rb

@@ -47,7 +47,7 @@ module TimelogHelper
     when 'User story'
       []
     when 'Support'
-      TimeEntryActivity::SUPPORT_ACTIVITIES
+      activities.collect { |a| [a.name, a.id] if a.is_activity_for_support? }
     else
       activities.map { |a| [a.name, a.id] }
     end

app/models/time_entry_activity.rb

@@ -55,4 +55,8 @@ class TimeEntryActivity < Enumeration
   def is_activity_for_task?
     TASK_BUGS_ACTIVITIES.include? name
   end
+
+  def is_activity_for_support?
+    SUPPORT_ACTIVITIES.include? name
+  end
 end