[gnome-maps] mapView: only clear existing markers if needed

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 8080b3fb5492ca38bcd4965a51d3944697beca3f
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Sun Mar 31 21:24:07 2013 +0300

    mapView: only clear existing markers if needed
    
    Only clear existing markers if there is new ones to show (i-e successful
    search results).

 src/mapView.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/mapView.js b/src/mapView.js
index b6b061a..9afb683 100644
--- a/src/mapView.js
+++ b/src/mapView.js
@@ -61,7 +61,6 @@ const MapView = new Lang.Class({
 
     geocodeSearch: function(string) {
         let forward = Geocode.Forward.new_for_string(string);
-        this._markerLayer.remove_all();
 
         forward.search_async (null, Lang.bind(this,
             function(forward, res) {
@@ -95,6 +94,7 @@ const MapView = new Lang.Class({
     _showLocations: function(locations) {
         if (locations.length == 0)
             return;
+        this._markerLayer.remove_all();
 
         locations.forEach(Lang.bind(this,
             function(location) {