Suppose there's a subdirectory named `MÜNCHEN`
in the current directory, then tab-completion won't recognize this
directory, when `cd münchen` + [tab] is
given.
I noticed this behavior when attempting to cd
the given directory (with tab autocomletion), and while doing the
same with `rm -r`.
I assume, it's a zsh-wide issue due to broken case-insensitive matching umlauts.
I'd like to provide some patch, but I was unable to
figure out, where the bug is caused.
Thanks,
Luis