[Evolution] evo crashes when 'warning' clicked

[michael <cs networkingnewsletter org uk>]

Running evo Evolution 2.22.3.1 on my AMD64/lenny box, it crashes when I
clicked on the 'warning' button (it displayed the "mailbox at 99%" msg
from the IMAP server then gdb threw sigsgv):

[Thread 0x44388950 (LWP 5630) exited]
[New Thread 0x44388950 (LWP 5631)]
[Thread 0x44388950 (LWP 5631) exited]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f2f0bd00700 (LWP 5230)]
0x00007f2f06eec447 in e_flag_set (flag=0xffffffffffffffff) at
e-flag.c:83
83      e-flag.c: No such file or directory.
        in e-flag.c
(gdb) where
#0  0x00007f2f06eec447 in e_flag_set (flag=0xffffffffffffffff) at
e-flag.c:83
#1  0x00007f2ef9a6eea9 in user_message_response (dialog=<value optimized
out>, 
    button=-5, m=0x4711360) at mail-session.c:298
#2  0x00007f2f00e61e9d in g_closure_invoke ()
from /usr/lib/libgobject-2.0.so.0
#3  0x00007f2f00e74bfd in ?? () from /usr/lib/libgobject-2.0.so.0
#4  0x00007f2f00e760ee in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#5  0x00007f2f00e765f3 in g_signal_emit ()
from /usr/lib/libgobject-2.0.so.0
#6  0x00007f2f00e61e9d in g_closure_invoke ()
from /usr/lib/libgobject-2.0.so.0
#7  0x00007f2f00e74bfd in ?? () from /usr/lib/libgobject-2.0.so.0
#8  0x00007f2f00e760ee in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#9  0x00007f2f00e765f3 in g_signal_emit ()
from /usr/lib/libgobject-2.0.so.0
#10 0x00007f2f0435ce4d in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#11 0x00007f2f00e61e9d in g_closure_invoke ()
from /usr/lib/libgobject-2.0.so.0
#12 0x00007f2f00e74518 in ?? () from /usr/lib/libgobject-2.0.so.0
#13 0x00007f2f00e760ee in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#14 0x00007f2f00e765f3 in g_signal_emit ()
from /usr/lib/libgobject-2.0.so.0
#15 0x00007f2f0435bfed in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#16 0x00007f2f0442a848 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#17 0x00007f2f00e61e9d in g_closure_invoke ()
from /usr/lib/libgobject-2.0.so.0
#18 0x00007f2f00e748dc in ?? () from /usr/lib/libgobject-2.0.so.0
#19 0x00007f2f00e75f71 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#20 0x00007f2f00e765f3 in g_signal_emit ()
from /usr/lib/libgobject-2.0.so.0
#21 0x00007f2f0453f4de in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#22 0x00007f2f044233d3 in gtk_propagate_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#23 0x00007f2f0442441b in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#24 0x00007f2f03d29fac in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#25 0x00007f2f009c57ab in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#26 0x00007f2f009c8f7d in ?? () from /usr/lib/libglib-2.0.so.0
#27 0x00007f2f009c94ad in g_main_loop_run ()
from /usr/lib/libglib-2.0.so.0
#28 0x00007f2f055c2336 in bonobo_main () from /usr/lib/libbonobo-2.so.0
#29 0x0000000000417af3 in main (argc=<value optimized out>, 
    argv=0x7fff13e54808) at main.c:793