Update to reflect previous implementation

Which was https://github.com/vector-im/riot-web/pull/3654/commits/a74bbb424c7c07494d71329e8d4c6ef9fc37a7b9

src/components/structures/RoomSubList.js

@@ -30,6 +30,7 @@ var RoomNotifs = require('matrix-react-sdk/lib/RoomNotifs');
 var FormattingUtils = require('matrix-react-sdk/lib/utils/FormattingUtils');
 var AccessibleButton = require('matrix-react-sdk/lib/components/views/elements/AccessibleButton');
 import Modal from 'matrix-react-sdk/lib/Modal';
+import KeyCode from 'matrix-react-sdk/lib/KeyCode';
 
 // turn this on for drop & drag console debugging galore
 var debug = false;
@@ -151,10 +152,11 @@ var RoomSubList = React.createClass({
         }
     },
 
-    onRoomTileClick(roomId) {
+    onRoomTileClick(roomId, ev) {
         dis.dispatch({
             action: 'view_room',
             room_id: roomId,
+            clear_search: (ev && (ev.keyCode == KeyCode.ENTER || ev.keyCode == KeyCode.SPACE)),
         });
     },