Comment 7 for bug 630886

I have tried obtaining a more detailed backtrace attached here:?field.comment=I have tried obtaining a more detailed backtrace attached as gdb-nautilus.txt
The command I ran to get the backtrace:
gdb -x ~/junk/nautilus.gdbrc -p `pidof nautilus` nautilus
The content of nautilus.gdbrc is as follows: (between the bars)
====
set logging file gdb-nautilus.txt
set logging overwrite on
set logging on
handle SIG33 pass nostop noprint
set pagination 0
continue
backtrace full
info registers
x/16i $pc
thread apply all backtrace full
quit
====
What I did the reproduce the bug:
1. run gdb to attach to nautilus (damn it is reborn every time ...)
2. visit Places / Bookmarks / Downloads, which gives me a Nautilus window
3. type "ooo". Nautilus behaved as expected. Close this window
4. invoke "nautilus ~/Downloads" from terminal, which gives me a Nautilus window
5. type "ooo". Bug reproduced:
  preedit box pops up, the first "o" is entered, and SIGSEGV was caught ...