Description of problem:

  On the "Monitor" -> "Tasks" page, if the user searches for a word, and then clicks the "search" button a second time to update the results, it does nothing.

Version-Release number of selected component (if applicable):

   Red Hat Satellite 6.7.4

How reproducible:
Steps to Reproduce:
1.  Produce an action that generates a task. (I ran a remote job against a host "myhostname"

2.  Type "myhostname" in the search field and click the search button

3.  Observe resulting task being found.

4.  Without navigating away from that Tasks page, perform an action that will generate another task that should show for that search.  (Example:  In another browser window or via hammer, schedule another remote job against that same host).

5.  Back in the Tasks window, without changing the search field, click the "Search" button again.

Actual results:

   - The search results are not updated.
   - Clicking the search button does NOT result in another GET in the /var/log/foreman/production.log log.

Expected results:

   When clicking search with a valid search term, regardless of prior actions, it should search and display relevant results.

Additional info:

 The following is observed during the first search in /var/log/foreman/production.log.

2020-12-15T14:49:13 [I|app|114ac7e1] Started GET "/foreman_tasks/api/tasks?search=myhostname&page=1&include_permissions=true" for 192.168.x.x at 2020-12-15 14:49:13 +0000
2020-12-15T14:49:13 [I|app|114ac7e1] Processing by ForemanTasks::Api::TasksController#index as JSON
2020-12-15T14:49:13 [I|app|114ac7e1]   Parameters: {"search"=>"myhostname", "page"=>"1", "include_permissions"=>"true"}

  However, there is no resulting log entry from a subsequent click of the search button, unless the search field is modified (add whitespace).   The second task (from reproduction step 4) will also not show up in the results unless the search field is modified (not just clicked on), or the tasks page is entirely reloaded.