[gnome-software] Fix double free on destruction of GsShellSearch

[Robert Ancell <rancell src gnome org>]

commit b5e5ffa6d95fab55704bf6d6ad56582d9687d959
Author: Robert Ancell <robert ancell canonical com>
Date:   Thu Mar 3 11:35:05 2016 +1300

    Fix double free on destruction of GsShellSearch

 src/gs-shell-search.c |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)
---
diff --git a/src/gs-shell-search.c b/src/gs-shell-search.c
index f259d0c..ee8b5e2 100644
--- a/src/gs-shell-search.c
+++ b/src/gs-shell-search.c
@@ -409,10 +409,21 @@ gs_shell_search_dispose (GObject *object)
        g_clear_object (&self->cancellable);
        g_clear_object (&self->search_cancellable);
 
+       G_OBJECT_CLASS (gs_shell_search_parent_class)->dispose (object);
+}
+
+/**
+ * gs_shell_search_finalize:
+ **/
+static void
+gs_shell_search_finalize (GObject *object)
+{
+       GsShellSearch *self = GS_SHELL_SEARCH (object);
+
        g_free (self->appid_to_show);
        g_free (self->value);
 
-       G_OBJECT_CLASS (gs_shell_search_parent_class)->dispose (object);
+       G_OBJECT_CLASS (gs_shell_search_parent_class)->finalize (object);
 }
 
 /**
@@ -426,6 +437,7 @@ gs_shell_search_class_init (GsShellSearchClass *klass)
        GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 
        object_class->dispose = gs_shell_search_dispose;
+       object_class->finalize = gs_shell_search_finalize;
        page_class->app_installed = gs_shell_search_app_installed;
        page_class->app_removed = gs_shell_search_app_removed;