[gnome-calendar] source-dialog: correctly check for any leftover resources

[Erick Pérez Castellanos <erickpc src gnome org>]

commit 7afc2b0c2977d8c559f32baaeff3c16718408a2d
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Feb 23 23:36:07 2015 -0300

    source-dialog: correctly check for any leftover resources

 src/gcal-source-dialog.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-source-dialog.c b/src/gcal-source-dialog.c
index e20f3f3..17d07d8 100644
--- a/src/gcal-source-dialog.c
+++ b/src/gcal-source-dialog.c
@@ -465,6 +465,12 @@ url_entry_text_changed (GObject    *object,
       gtk_entry_set_progress_fraction (GTK_ENTRY (priv->calendar_address_entry), 0);
     }
 
+  if (priv->validate_url_resource_id != 0)
+    {
+      g_source_remove (priv->validate_url_resource_id);
+      priv->validate_url_resource_id = 0;
+    }
+
   if (g_utf8_strlen (text, -1) != 0)
     {
       // Remove any previous unreleased resource