set_filename() and select_filename() don't emit update_preview()

[Bartosz Kostrzewa <zoombat runbox com>]

Hi,

shouldn't set_filename() and select_filename() in the filechooser widget
cause the emission of update preview? If not, why not?

I'll work around it if it is intended behaviour (as I have to do that
anyway for people who don't have the latest version)

Thanks!

using gtkmm 2.10.9 and a FileChooserWidget

-Bartek