amarok: /d/kde/src/4/kdelibs/khtml/khtml_factory.cpp:63: virtual KHTMLFactory::~KHTMLFactory(): Assertion `!s_refcnt' failed.

==== (gdb) bt =====================
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1255332144 (LWP 24080)]
[New Thread -1400927344 (LWP 24114)]
[New Thread -1383822448 (LWP 24092)]
[New Thread -1332098160 (LWP 24086)]
[New Thread -1323705456 (LWP 24085)]
[New Thread -1284424816 (LWP 24084)]
[New Thread -1292817520 (LWP 24083)]
0xffffe410 in __kernel_vsyscall ()
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7dba0db in ?? () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7778736 in Amarok::Crash::crashHandler () at /d/kde/src/4/git/amarok/src/amarokcore/crashhandler.cpp:260
#3  <signal handler called>
#4  0xffffe410 in __kernel_vsyscall ()
#5  0xb55ebdf0 in raise () from /lib/tls/i686/cmov/libc.so.6
#6  0xb55ed641 in abort () from /lib/tls/i686/cmov/libc.so.6
#7  0xb55e543b in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
#8  0xb6c4520c in ~KHTMLFactory (this=0x85368b8) at /d/kde/src/4/kdelibs/khtml/khtml_factory.cpp:63
#9  0xb7ed514f in QObjectCleanupHandler::clear (this=0x85368f0) at kernel/qobjectcleanuphandler.cpp:135
#10 0xb7ed52b5 in ~QObjectCleanupHandler (this=0x85368f0) at kernel/qobjectcleanuphandler.cpp:81
#11 0xb7be64e0 in destroy () at /d/kde/src/4/kdelibs/kdecore/util/kpluginfactory.cpp:29
#12 0xb7ad6149 in ~KCleanUpGlobalStatic (this=0xb7c219b0) at /d/kde/src/4/kdelibs/kdecore/kernel/kglobal.h:65
#13 0xb7be6458 in __tcf_0 () at /d/kde/src/4/kdelibs/kdecore/util/kpluginfactory.cpp:29
#14 0xb55ee9d9 in exit () from /lib/tls/i686/cmov/libc.so.6
#15 0xb55d7ec4 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#16 0x08048d41 in _start ()