remove search term after the RHS is closed

web/react/components/search_bar.jsx

@@ -47,6 +47,13 @@ module.exports = React.createClass({
             results: null
         });
 
+        AppDispatcher.handleServerAction({
+            type: ActionTypes.RECIEVED_SEARCH_TERM,
+            term: null,
+            do_search: false,
+            is_mention_search: false
+        });
+
         AppDispatcher.handleServerAction({
             type: ActionTypes.RECIEVED_POST_SELECTED,
             results: null

web/react/components/search_results.jsx

@@ -23,6 +23,13 @@ var RhsHeaderSearch = React.createClass({
             results: null
         });
 
+        AppDispatcher.handleServerAction({
+            type: ActionTypes.RECIEVED_SEARCH_TERM,
+            term: null,
+            do_search: false,
+            is_mention_search: false
+        });
+
         AppDispatcher.handleServerAction({
             type: ActionTypes.RECIEVED_POST_SELECTED,
             results: null