[gnome-software/wip/william/cherry-pick: 2/9] trivial: Guard against self-setting origin

[William Hua <williamhua src gnome org>]

commit 3b7ca13d82b69895464f3298a7c05f0daa6c14ee
Author: William Hua <william hua canonical com>
Date:   Thu Apr 14 01:17:04 2016 -0400

    trivial: Guard against self-setting origin

 src/gs-app.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/gs-app.c b/src/gs-app.c
index b2ee1c1..a7c7479 100644
--- a/src/gs-app.c
+++ b/src/gs-app.c
@@ -1533,8 +1533,11 @@ void
 gs_app_set_origin (GsApp *app, const gchar *origin)
 {
        g_return_if_fail (GS_IS_APP (app));
-       g_free (app->origin);
-       app->origin = g_strdup (origin);
+
+       if (origin != app->origin) {
+               g_free (app->origin);
+               app->origin = g_strdup (origin);
+       }
 }
 
 /**