Upgrade to 1.21

sqweek Wrote:Interesting one, I can't see where it's going wrong. MyBB claims to be sending UTF-8 and as far as I can tell it is (the 0xA0s appearing in E-mouse's sig are still non breaking spaces in unicode),

AHHH no,

Code point 160 is encoded in two bytes in utf-8, so E-mouse's sig that I'm getting is not valid utf-8 as MyBB claims and Firefox is well within its rights to bring out the good old question marks.
*Nightwind* this also explains why MyBB was whinging about your signature length before you switched back to the dot dot dot version.
The question still remains as to why it's sending bogus data out. Hopefully it's just an artifact of the upgrade and there's still some old non-utf-8 encoded text around, and MyBB isn't just accepting whatever data the user sends and going "looks like utf-8 to me!" (though I could forgive this transgression since locales in this day and age are more retarded than MyBB could ever hope to be).