[Libreoffice] assertion in SwIndexReg::~SwIndexReg

I see something that I thought was impossible ...

Running on ubuntu-natty, with commit ids 61fce03 (pulled
2011-12-02) and 4097499 (pulled 2011-12-08) running under
gdb in gnome-terminal, I highlighted three lines with the
mouse and did right-click > copy.  soffice.bin raises the
assertion in SwIndexReg::~SwIndexReg().

How on earh can soffice.bin know that I did anything in
gnome-terminal?

FWIW, I got into this situation by trying to investigate bug
43234 "assertion raised, index.cxx:238"
<https://bugs.freedesktop.org/show_bug.cgi?id=43234>.  That
is the same assertion, but the current test has proceeded
well beyond the point of failure reported in the bug.

What can I do to follow up on this strange happening?
Suggestions welcome.

Thanks,
Terry.