The Gnome file selector (file-chooser dialog) does not honor `.hidden` files.

In Nautilus it is possible to hide files and folders by listing the files in a `.hidden` file in the directory where they reside.  This feature is very useful in order to reduce information overflow for ordinary users.

The problem is that files hidden this way are still listed in file dialogs. In such dialogs the problem of too much information is even bigger than in Nautilus as the file dialog is smaller, and the chance that the user have to resort to
time consuming scrolling to find the file he needs is higher.

Reproduce:
1) create a folder within your home directory
2) create a file `.hidden` within the same directory and add the name of the new folder to it
3) refresh Nautilus -> the directory is not shown (when not showing hidden files)
4) open gedit or any other Gnome application that uses the default file chooser
5) select open file or any menu item to open a file chooser dialog

Actual result:
The explicitly hidden folder is listed in the dialog.

Expected result:
Consistent behavior of hiding files listed in the .hidden filen file selection
dialogs as well as in Nautilus windows. That is, the test folder from above would not show up in file chooser unless the option 'Show hidden files' is enabled.

Version:
I'm seeing this inconsistent behavior here on an up-to-date Ubuntu running Gnome 2.30.

Additional information:
The issue was already reported by Uno Engborg in 2005 and was marked as Resolved/Obsolete (Bug 314280). The original bug was reported against libgnomeui (now deprecated isn't it) though. Obviously it is not solved and still present.