[gimp] file-open-location: don't close dialog if no file was opened

[Michael Natterer <mitch src gnome org>]

commit 019af3dacb92e18179d60951cad890b4c87ab7c8
Author: Edward E <develinthedetail gmail com>
Date:   Sat Mar 31 12:03:51 2018 -0500

    file-open-location: don't close dialog if no file was opened

 app/dialogs/file-open-location-dialog.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/app/dialogs/file-open-location-dialog.c b/app/dialogs/file-open-location-dialog.c
index 462b1a5..1c8fc8b 100644
--- a/app/dialogs/file-open-location-dialog.c
+++ b/app/dialogs/file-open-location-dialog.c
@@ -226,6 +226,12 @@ file_open_location_response (GtkDialog *dialog,
             }
 
           g_object_unref (file);
+
+          if (image != NULL)
+            {
+              gtk_widget_destroy (GTK_WIDGET (dialog));
+              return;
+            }
         }
       else
         {
@@ -233,12 +239,8 @@ file_open_location_response (GtkDialog *dialog,
                         _("Opening '%s' failed:\n\n%s"),
                         text, error->message);
           g_clear_error (&error);
-
-          return;
         }
     }
-
-  gtk_widget_destroy (GTK_WIDGET (dialog));
 }
 
 static gboolean