mutter breaks autotype, changes characters

Binary package hint: keepassx

using keepassx with mutter wont let me log in via autotype. copy password to clipboard+paste works.

on the same computer using the standard ubuntu desktop session it works without problem.

autotyping into a textfile shows, that at least the following characters are changed/wrong in mutter/autotype mode.

+ is autotyped as ]
# is autotyped as \
= is autotyped as )
_ is autotyped as ?
- is autotyped as /

this is not a full analysis of possible errors, but just the characters that got mixed up in one of my passwords.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: keepassx 0.4.3-1
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
NonfreeKernelModules: wl
Architecture: i386
Date: Mon Oct 18 15:09:18 2010
ExecutablePath: /usr/bin/keepassx
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 LANG=C
 SHELL=/bin/bash
SourcePackage: keepassx