Comment 34 for bug 1245662

You've filed this bug against the XKB configuration data files - i.e. the ones
with all the different keyboard layouts for all the different international
keyboards in different locales. While there are some configuration data for
sticky keys in these files, it hasn't changed in years:
http://cgit.freedesktop.org/xkeyboard-config/log/compat/accessx

Are you sure this bug is in the configuration data and not the X server or
the input (evdev) driver?

Helping narrow down which package is responsible and which versions work
or don't work will greatly help in finding where the bug is to get it fixed.