Special characters

Special character support is quite bad.

You can type special characters but on a page refresh they cut off everything from that point (including themselves). Items beginning with such characters don't even appear after a refresh.

I've tested a few:
Umlaute (äÄüö...)
accents (´`áÌ)
special characters like § µ ³

I suspect there is a faulty behaviour for non-ASCII characters in general.
A look at the database table shows that the content of the 'text' fields looks exactly like the output. So the text probably isn't saved here correctly.

One exception:
The Euro sign (€) gets transformed into unicode (UTF-16?): %u20AC (No cut off here)