Version:           1.9.9 (using 3.5.9, Gentoo)
Compiler:          Target: x86_64-pc-linux-gnu
OS:                Linux (x86_64) release 2.6.25-gentoo-r7

In case anyone is still working on the kmail-3.5 codebase: Today as I asnwered a mail on an IMAP server (by hitting "a"), kmail crashed with the backtrace below. After the crash, the mail appeared (in kmail) to be empty [nothing left except the headers]. However, on the IMAP server, the mail is still completely intact.

The backtrace for this crash was:

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 0x7f57ef764700 (LWP 19468)]
[New Thread 0x42af3950 (LWP 19472)]
[New Thread 0x422f2950 (LWP 19471)]
[New Thread 0x41af1950 (LWP 19470)]
[New Thread 0x412f0950 (LWP 19469)]
[KCrash handler]
#5  0x00007f57e29ccf65 in KMReaderWin::copyText (this=<value optimized out>)
    at kmreaderwin.cpp:2376
#6  0x00007f57e2b822c9 in KMail::MessageActions::replyCommand<KMReplyToAllCommand> (this=0xd98f80) at messageactions.h:67
#7  0x00007f57e2b80883 in KMail::MessageActions::qt_invoke (this=0xd98f80, 
    _id=6, _o=0x7ffff77a2b00) at messageactions.moc:108
#8  0x00007f57e9193888 in QObject::activate_signal (this=0xd9c660, 
    clist=0xd9cb30, o=0x7ffff77a2b00) at kernel/qobject.cpp:2356
#9  0x00007f57e91948a2 in QObject::activate_signal (this=0xd9c660, signal=2)
    at kernel/qobject.cpp:2325
#10 0x00007f57eb8bcb15 in KAction::qt_invoke (this=0xd9c660, _id=15, 
    _o=0x7ffff77a2c70) at kaction.moc:218
#11 0x00007f57e9193888 in QObject::activate_signal (this=0xeabda0, 
    clist=0xed3ff0, o=0x7ffff77a2c70) at kernel/qobject.cpp:2356
#12 0x00007f57e91948a2 in QObject::activate_signal (this=0xeabda0, signal=2)
    at kernel/qobject.cpp:2325
#13 0x00007f57ea929630 in KAccelPrivate::emitActivatedSignal (this=0xeabda0, 
    pAction=0xeefe20) at kaccel.cpp:400
#14 0x00007f57ea929c80 in KAccelPrivate::eventFilter (this=0xeabda0, 
    pEvent=0x7ffff77a3420) at kaccel.cpp:370
#15 0x00007f57e91911c0 in QObject::activate_filters (this=0x6e6510, 
    e=0x7ffff77a3420) at kernel/qobject.cpp:903
#16 0x00007f57e9191260 in QObject::event (this=0x6e6510, e=0x7ffff77a3420)
    at kernel/qobject.cpp:735
#17 0x00007f57e91d6eb3 in QWidget::event (this=0x6e6510, e=0x7ffff77a3420)
    at kernel/qwidget.cpp:4659
#18 0x00007f57e92d197e in QMainWindow::event (this=0x6e6510, e=0x7ffff77a3420)
    at widgets/qmainwindow.cpp:1687
#19 0x00007f57e911897f in QApplication::internalNotify (this=0x7ffff77a3c10, 
    receiver=0x6e6510, e=0x7ffff77a3420) at kernel/qapplication.cpp:2635
#20 0x00007f57e911acb9 in QApplication::notify (this=0x7ffff77a3c10, 
    receiver=0x1259c60, e=0x7ffff77a3420) at kernel/qapplication.cpp:2392
#21 0x00007f57ea8c276c in KApplication::notify (this=0x7ffff77a3c10, 
    receiver=0x1259c60, event=0x7ffff77a3420) at kapplication.cpp:550
#22 0x00007f57ea92a818 in KAccelEventHandler::x11Event (
    this=<value optimized out>, pEvent=<value optimized out>)
    at kaccel.cpp:144
#23 0x00007f57ea8bae24 in KApplication::x11EventFilter (this=0x7ffff77a3c10, 
    _event=0x7ffff77a38b0) at kapplication.cpp:1729
#24 0x00007f57e908249f in qt_x11EventFilter (ev=0x7ffff77a38b0)
    at kernel/qapplication_x11.cpp:387
#25 0x00007f57e9096858 in QApplication::x11ProcessEvent (this=0x7ffff77a3c10, 
    event=0x7ffff77a38b0) at kernel/qapplication_x11.cpp:3315
#26 0x00007f57e90b05a4 in QEventLoop::processEvents (this=0x6a8bd0, flags=4)
    at kernel/qeventloop_x11.cpp:192
#27 0x00007f57e91385e5 in QEventLoop::enterLoop (this=0x6a8bd0)
    at kernel/qeventloop.cpp:198
#28 0x00007f57e91383eb in QEventLoop::exec (this=0x6a8bd0)
    at kernel/qeventloop.cpp:145
#29 0x00007f57e911a7c4 in QApplication::exec (this=0x7ffff77a3c10)
    at kernel/qapplication.cpp:2758
#30 0x000000000041ea63 in main (argc=<value optimized out>, 
    argv=0x7ffff77a3f28) at main.cpp:163
#31 0x00007f57e53a1486 in __libc_start_main (main=0x41e8ba <main>, argc=1, 
    ubp_av=0x7ffff77a3f28, init=0x430b20 <__libc_csu_init>, 
    fini=<value optimized out>, rtld_fini=<value optimized out>, 
    stack_end=0x7ffff77a3f18) at libc-start.c:226
#32 0x000000000041e5c9 in _start ()
Current language:  auto; currently c