Fix bug

app/helpers/timelog_helper.rb

@@ -40,7 +40,7 @@ module TimelogHelper
     collection += case @issue&.tracker&.name
     when 'Task'
       @issue.is_task_with_target? ?
-        TimeEntryActivity::TASK_WITH_TARGET_ACTIVITIES :
+        activities.collect { |a| [a.name, a.id] if a.is_task_with_target? } :
         activities.collect { |a| [a.name, a.id] if a.is_activity_for_task? }
     when 'Bug'
       activities.collect { |a| [a.name, a.id] if a.is_activity_for_task? }

app/models/time_entry_activity.rb

@@ -59,4 +59,8 @@ class TimeEntryActivity < Enumeration
   def is_activity_for_support?
     SUPPORT_ACTIVITIES.include? name
   end
+
+  def is_task_with_target?
+    TASK_WITH_TARGET_ACTIVITIES.include? name
+  end
 end