[gnome-calendar/calendar-editor] source-dialog: remove previous results before adding new ones

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit d02789beaa6689c0a88bb84ab71a25f639464bc6
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Mar 30 23:29:09 2015 -0300

    source-dialog: remove previous results before adding new ones

 src/gcal-source-dialog.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-source-dialog.c b/src/gcal-source-dialog.c
index 78e30ed..573e1a9 100644
--- a/src/gcal-source-dialog.c
+++ b/src/gcal-source-dialog.c
@@ -763,6 +763,10 @@ discover_sources_cb (GObject      *source,
 
   if (n_sources > 1)
     {
+      // Remove previous results
+      g_list_free_full (gtk_container_get_children (GTK_CONTAINER (priv->web_sources_listbox)),
+                        (GDestroyNotify) gtk_widget_destroy);
+
       // Show the list of calendars
       gtk_revealer_set_reveal_child (GTK_REVEALER (priv->web_sources_revealer), TRUE);