The autocomplete code doesn't do anything special related to maxlength, so this was probably caused by bug 345267. That change made it possible to enter more than maxlength characters into a text field programmatically, to match other browsers. The autocomplete code sets the value via the same code path as page scripts, so it was affected too.
The autocomplete code doesn't do anything special related to maxlength, so this was probably caused by bug 345267. That change made it possible to enter more than maxlength characters into a text field programmatically, to match other browsers. The autocomplete code sets the value via the same code path as page scripts, so it was affected too.