[gtk+/gtk-2-20] filechooser: Fix a crash when removing files

[Javier Jardón <jjardon src gnome org>]

commit 476281a46b36ae0b3c18c7d4ea85d1a95d231e7f
Author: Benjamin Otte <otte redhat com>
Date:   Sun May 2 14:32:18 2010 +0200

    filechooser: Fix a crash when removing files
    
    The file removal code was not properly clearing the file=>array index
    cache, so later lookups into that cache would return invalid array
    indexes.
    
    The easiest way to reproduce it is to create a directory with two files
    and deleting both of them.
    
    Reported-by: Javier Jardón <jjardon gnome org>

 gtk/gtkfilesystemmodel.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkfilesystemmodel.c b/gtk/gtkfilesystemmodel.c
index b3328e0..738b061 100644
--- a/gtk/gtkfilesystemmodel.c
+++ b/gtk/gtkfilesystemmodel.c
@@ -1747,6 +1747,7 @@ remove_file (GtkFileSystemModel *model,
     g_object_unref (node->info);
 
   g_array_remove_index (model->files, id);
+  g_hash_table_remove_all (model->file_lookup);
   /* We don't need to resort, as removing a row doesn't change the sorting order */
 }