[gimp] app: don't unref the passed file in gimp_operation_config_[de]serialize()

[Michael Natterer <mitch src gnome org>]

commit 82d23fc6ff64fb7d64642556ad7d4c482834dc86
Author: Michael Natterer <mitch gimp org>
Date:   Mon Jun 5 20:32:07 2017 +0200

    app: don't unref the passed file in gimp_operation_config_[de]serialize()

 app/operations/gimp-operation-config.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/app/operations/gimp-operation-config.c b/app/operations/gimp-operation-config.c
index 219e9ad..13067dc 100644
--- a/app/operations/gimp-operation-config.c
+++ b/app/operations/gimp-operation-config.c
@@ -405,7 +405,11 @@ gimp_operation_config_serialize (Gimp          *gimp,
   g_return_if_fail (GIMP_IS_CONTAINER (container));
   g_return_if_fail (file == NULL || G_IS_FILE (file));
 
-  if (! file)
+  if (file)
+    {
+      g_object_ref (file);
+    }
+  else
     {
       GType config_type = gimp_container_get_children_type (container);
 
@@ -444,7 +448,11 @@ gimp_operation_config_deserialize (Gimp          *gimp,
   g_return_if_fail (GIMP_IS_CONTAINER (container));
   g_return_if_fail (file == NULL || G_IS_FILE (file));
 
-  if (! file)
+  if (file)
+    {
+      g_object_ref (file);
+    }
+  else
     {
       GType config_type = gimp_container_get_children_type (container);