Version:            (using KDE Devel)
Installed from:    Compiled sources

Especially when saving it would be convenient if only the base name of the file would be selected in the location edit.
When overwriting by inserting this way one does not need to retype the extension. (some motivation: GNOME has it, at least for nautilus ;)

possible starting point for a solution:
In function "setLocationText(...)" in "kfiledialog.cpp" add code to reduce
the selection to the base name.
Needs a new function "baseNameEnd(const QString &)"

void KFileDialog::setLocationText( const QString& text )
{
  (old code)

  // not multiselection?
  if( !(ops->mode() & KFile::Files) )
    locationEdit->lineEdit()->setSelection( 0, baseNameEnd(text) );
}