x immediately followed by some other command: core dump

Pressing x immediatly followed by m or f results in a
core dump:

xdvi-xaw.bin 22.81.1 (Xaw toolkit): events.c:3423:
Shouldn't happen: Segmentation fault - trying to clean
up and aborting ...

This seems to happen if the second command occors
before changing the sidebar status "settles".

(gdb) bt
#0 0x40250861 in kill () from /lib/libc.so.6
#1 0x40250665 in raise () from /lib/libc.so.6
#2 0x40251c81 in abort () from /lib/libc.so.6
#3 0x0807b0d0 in expand_homedir (path=0x80fe48d
"changeHook") at util.c:312
#4 0x08063d88 in handle_sigsegv (signo=11) at
events.c:3423
#5 <signal handler called>
#6 0x400af366 in XtWindowOfObject () from
/usr/X11R6/lib/libXt.so.6
#7 0x400af509 in XtIsRealized () from
/usr/X11R6/lib/libXt.so.6
#8 0x0808818d in xaw_maybe_scroll_pagelist
(new_page=2, force_recenter=0,
idx_bak=0) at pagesel.c:1071
#9 0x08088681 in maybe_scroll_pagelist (newpage=1,
force_recenter=0 '\000')
at pagesel.c:1337
#10 0x08061106 in goto_page (new_page=1, proc=0) at
events.c:1340
#11 0x080613d6 in Act_forward_page (w=0x82244d8,
event=0xbffff1cc, params=0x0,
num_params=0x400dc434) at events.c:1466
#12 0x400cc44d in HandleActions () from
/usr/X11R6/lib/libXt.so.6
#13 0x400cc90f in HandleSimpleState () from
/usr/X11R6/lib/libXt.so.6
#14 0x400cce64 in _XtTranslateEvent () from
/usr/X11R6/lib/libXt.so.6
#15 0x400a7f77 in XtDispatchEventToWidget () from
/usr/X11R6/lib/libXt.so.6
#16 0x400a8928 in _XtDefaultDispatcher () from
/usr/X11R6/lib/libXt.so.6
#17 0x400a8b89 in XtDispatchEvent () from
/usr/X11R6/lib/libXt.so.6
#18 0x08064c49 in read_events (ret_mask=32766) at
events.c:4313
#19 0x08065402 in do_pages () at events.c:4548
---Type <return> to continue, or q <return> to quit---
#20 0x08081a71 in main (argc=2, argv=0xbffff314) at
xdvi.c:3963
#21 0x4023f7ee in __libc_start_main () from /lib/libc.so.6