Description of problem:
[Search/task] - Not able to save the Search in the task  

Version-Release number of selected component (if applicable):
Satellite 6.5 Snap 21  

How reproducible:
Always 

Steps to Reproduce:
1. Navigate to Monitor -> task 
2. try to create the new bookmark 
3. Not able to save the bookmark 

Actual results:
Not able to save the bookmark. 

Expected results:
Search book should be saved. 

Additional info:
error in the log : 

2019-03-28T07:04:43 [I|app|] Started POST "/api/bookmarks" for 10.65.223.223 at 2019-03-28 07:04:43 -0400
2019-03-28T07:04:43 [I|app|c4417c96] Processing by Api::V2::BookmarksController#create as JSON
2019-03-28T07:04:43 [I|app|c4417c96]   Parameters: {"name"=>"zxXZ", "query"=>"result = error", "public"=>true, "apiv"=>"v2", "bookmark"=>{"name"=>"zxXZ", "query"=>"result = error", "controller"=>"api/v2/bookmarks", "public"=>true}}
2019-03-28T07:04:43 [I|app|c4417c96] Current user set to admin (admin)
2019-03-28T07:04:43 [E|app|c4417c96] Unprocessable entity Bookmark (id: new):
  Controller /foreman_tasks/tasks is not a valid controller

2019-03-28T07:04:43 [I|app|c4417c96]   Rendering api/v2/errors/unprocessable_entity.json.rabl within api/v2/layouts/error_layout
2019-03-28T07:04:43 [I|app|c4417c96]   Rendered api/v2/errors/unprocessable_entity.json.rabl within api/v2/layouts/error_layout (0.9ms)
2019-03-28T07:04:43 [I|app|c4417c96] Completed 422 Unprocessable Entity in 21ms (Views: 1.6ms | ActiveRecord: 5.9ms)
2019-03-28T07:04:44 [I|app|] Started GET "/notification_recipients" for 10.65.223.223 at 2019-03-28 07:04:44 -0400
2019-03-28T07:04:44 [I|app|856a5e58] Processing by NotificationRecipientsController#index as JSON
2019-03-28T07:04:44 [I|app|856a5e58] Current user set to admin (admin)
2019-03-28T07:04:44 [I|app|856a5e58] Completed 200 OK in 6ms (Views: 0.1ms | ActiveRecord: 1.0ms)