Fix applying selected filter from Global/My Filters

fixing https://bugzilla.redhat.com/show_bug.cgi?id=1429519

Fix applying selected filter from Global/My Filters
in accordion when clicking on the name of a filter
in Configuration -> Management -> Configured systems.
Fix disappearing of tree view when deleting loaded
filter in expression editor.

app/controllers/application_controller/filter.rb

@@ -947,7 +947,7 @@ def adv_search_build(model)
     # Restore @edit hash if it's saved in @settings
     @expkey = :expression                                               # Reset to use default expression key
     if session[:adv_search] && session[:adv_search][model.to_s]
-      @edit = copy_hash(session[:adv_search][model.to_s])
+      @edit = copy_hash(session[:edit])
       # default search doesnt exist or if it is marked as hidden
       if @edit && @edit[:expression] && !@edit[:expression][:selected].blank? &&
          !MiqSearch.exists?(@edit[:expression][:selected][:id])

app/controllers/provider_foreman_controller.rb

@@ -82,7 +82,7 @@ def load_or_clear_adv_search
     session[:edit] = @edit
     @explorer = true
 
-    if x_active_tree != :configuration_manager_cs_filter_tree || x_node == "root"
+    if (x_active_tree != :configuration_manager_cs_filter_tree || x_node == "root") && params[:button] != 'saveit'
       listnav_search_selected(0)
     else
       @nodetype, id = parse_nodetype_and_id(valid_active_node(x_node))
@@ -96,6 +96,8 @@ def load_or_clear_adv_search
           self.x_node = params[:id]
           quick_search_show
         end
+      elsif x_active_tree == :configuration_manager_cs_filter_tree && params[:button] != 'saveit'
+        listnav_search_selected(id)
       end
     end
   end