[tlbuild] Repeated Mac arm64 crashes of xdvi-xaw with "set_no_char: attempt to set character of unknown font, offset 42"

[Karl Berry]

    XDvi 22.87.04 (Xaw toolkit): Failed assertion:
    ../../../texk/xdvik/dvi-draw.c:2187: "color_bot_size > 0":
    color_bot_size mustn't become negative! Aborting now. Please report this
    as a bug to: http://sourceforge.net/tracker/?group_id=23164&atid=377580

A different failure, perhaps with the same underlying cause, whatever it
is.  Can you post your .dvi, Dick?  It does not really matter that it is
not minimal. What's important for debugging, at least at first blush, is
to be able to reproduce the crash. (Maybe you could use dviselect to
extract out a few pages and see if the crash still happens, though.)

Per Mojca's suggestion, does anyone have FreeBSD that can try it? -k