Public bug reported:

The accessibility option Sticky Keys in it's default state releases the
'stuck' modifier key after any HID input (mouse click, keyboard non-
modifier button pressed). Additionally, Sticky Keys has a Lock feature
which does not automatically release the 'stuck modifier', but rather
waits until the user presses the modifier key again to release it.

In Kubuntu 13.10 the 'Lock' feature is broken. It is _always_enabled_
for the mouse, and _always_disabled_ for the keyboard, regardless of
whether or not the checkbox is checked. Actually, Kubuntu 13.04 had this
problem as well, but I though that it was a configuration issue on my
part and simply avoided updating to 13.04. However, I can no longer
avoid updating and I cannot use current Kubuntu with the Accessibility
issue in this state.

What are the conditions for considering an issue high priority? Users
with Accessibility issues can no longer use the current KDE, does that
quality for high priority?

Steps to Reproduce:
1. Enable Sticky Keys (System Settings -> Accessibility -> Modifier Keys)
2. Enable "Use sticky keys" and disable "Lock sticky keys".
3. In Kate, click Ctrl then click a mail in the Message List Pane to select it. 
Now click on a second mail and notice that it too is selected. Now a third.
Actual Results: All the mails are added to the selection.
Expected Results: One would expect that with the "Lock sticky keys" checkbox 
disabled that the Ctrl button would be released after clicking a single mail. 
With "Lock sticky keys" disabled the expected workflow to select multiple mails 
is to either press the Ctrl button after each mail or to hold it down.

Note that this issue affects all modifier keys in all applications. This
is most annoying when using Shift- or Ctrl- MouseScroll i.e. in Firefox
as the modifier is not release when expected.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: systemsettings 4:4.10.5-0ubuntu0.1
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Uname: Linux 3.8.0-31-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
Date: Mon Oct 28 22:13:10 2013
InstallationDate: Installed on 2013-05-01 (180 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
SourcePackage: kde-workspace
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: kde-workspace (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug raring

** Bug watch added: KDE Bug Tracking System #325893
   https://bugs.kde.org/show_bug.cgi?id=325893

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https://bugs.launchpad.net/bugs/1245662

Title:
  Sticky Keys not released after mouse action.

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