[gimp] app: fix layer-options-dialog.c return width and height again

[Michael Natterer <mitch src gnome org>]

commit f47c012ab5520c61ca949db298996f37b9dc764f
Author: Michael Natterer <mitch gimp org>
Date:   Thu Oct 27 21:00:14 2016 +0200

    app: fix layer-options-dialog.c return width and height again
    
    Being able to create layers is important...

 app/dialogs/layer-options-dialog.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/dialogs/layer-options-dialog.c b/app/dialogs/layer-options-dialog.c
index e501a8a..730a08f 100644
--- a/app/dialogs/layer-options-dialog.c
+++ b/app/dialogs/layer-options-dialog.c
@@ -417,7 +417,7 @@ layer_options_dialog_callback (GtkWidget   *dialog,
   gint                offset_x;
   gint                offset_y;
 
-  if (item)
+  if (private->size_se)
     {
       width =
         RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se),