Version:            (using KDE 3.5.9)
Installed from:    Debian testing/unstable Packages
Compiler:          gcc 4.2.3 
OS:                Linux

The filename input dialog combo-box loses focus when tab is pressed in "automatic" auto-completion mode.

How to reproduce:

1. Start konqueror or any other KDE application with a file open/save dialogue
2. Select "open" from the menu
3. Right click on the address/filename input combo-box and select autocompletion mode: automatic
   (expected behavior: filename completion is shown in a greyish colour and pressing tab autocompletes the input while keeping the focus in the combo-box to continue typing your path)
4. Enter /u
   -> expected behavior: shows "/u" in black and "sr" in grey, after pressing tab shows /usr and place cursor behind /usr
   -> observed behavios: shows "/u" in black and "sr" in grey, after pressing tab shows /usr, but combo-box loses focus and it is not possible to type path

Important: This can only be reproduced in completion mode "automatic" and this bug seems to apply not only to KDE 3.5.x, but also to KDE 4.x

Kind regards,
Daniel