[gnome-photos/gnome-3-26] organize-collection-view: Don't leak the newly created URN

[Debarshi Ray <debarshir src gnome org>]

commit f8192de818aabaac6f37c0c25f5c445ba915040b
Author: Debarshi Ray <debarshir gnome org>
Date:   Tue Feb 6 22:36:25 2018 +0100

    organize-collection-view: Don't leak the newly created URN
    
    Fallout from 23919376f98ee6aba56af7aafd3639913a13b590

 src/photos-organize-collection-view.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/photos-organize-collection-view.c b/src/photos-organize-collection-view.c
index 4af11d7e..b5e7cd5a 100644
--- a/src/photos-organize-collection-view.c
+++ b/src/photos-organize-collection-view.c
@@ -121,7 +121,7 @@ photos_organize_collection_view_create_collection_executed (GObject *source_obje
   GError *error;
   GtkTreeIter iter;
   GtkTreePath *path = NULL;
-  const gchar *created_urn;
+  gchar *created_urn = NULL;
 
   error = NULL;
   created_urn = photos_create_collection_job_finish (col_job, res, &error);
@@ -159,6 +159,7 @@ photos_organize_collection_view_create_collection_executed (GObject *source_obje
 
  out:
   g_clear_object (&set_job);
+  g_free (created_urn);
   gtk_tree_path_free (path);
 }