I have a funny bug using spell check with a Danish dictionary.
I downloaded a Huspell format dictionary file and converted the file to UTF-8 format to ensure proper character support.
Everything works great excepts for words which starts or ends with non-ascii characters (danish have æ,ø and å).
That is words which have these characters in the middle works flawlessly, but when the special letter is in the front or the end it seems like it discarded before looking up in the dictionary.
So if i write the word "øvrige", the dictionary seems to think i wrote "vrige" and the suggests "øvrige". Clicking on the suggestion will cause one extra "ø" to be inserted so the text says "øøvrige"
Same things happens for example with the word "indgå", here the "å" is not probably recognised.