Version:            (using KDE KDE 3.5.7)
Installed from:    Gentoo Packages
Compiler:          GCC-4.1.2 
OS:                Linux

When creating/modifying entries in the File Types module of KControl, one is
forced to enter all combinations of uppercase/lowercase letters for each file
type so that all permutations are recognized in KDE.  The module also does not
allow recognize the use of regular expressions to make this task easier.

Reproducible: Always

Steps to Reproduce:
1.Clear all file-extension entries in a file-type entry in KControl so that the
icon changes to a more general type in Konqueror when browsing.  A good example
is clearing the "*.avi;*.AVI" extensions for the default first entry in the
video category and the file type is then represented with a speaker icon.
2.Add the "*.avi", "*.AVI", "*.[Aa][Vv][Ii]" extension entries for the type.
3.View a file listing in konqueror that includes "AVI" files and click the
reload button.
4. Rename one of the files to [filename].aVi, [filename].Avi, etc... and click
reload in konqueror.
Actual Results:  
Video icons appear for the files in step 3.
A speaker icon appears for the file in step 4.

Expected Results:  
File should still be recognized with a video icon as the regular expression
should be processed (or at the very least the extension should be recognized in
a case-insensitive manner).

Confirmed using KDE 3.5.7 with kdelibs-3.5.7-r2 and kcontrol-3.5.7-r1.