Re: jit lock sit-for provokes redisplay provokes imenu

[martin rudalics]

> >  return BUF_SAVE_MODIFF (buf) < BUF_CHARS_MODIFF (buf) ? Qt : Qnil;
>
>
> Isn't this vulnerable to problems when MODIFF wraps around?

Hmmm...  Do you think it's more vulnerable than `buffer-modified-p' or
`update_menu_bar'?  I probably don't understand the latter correctly -
presumably they could try to do something special for the case
BUF_SAVE_MODIFF > BUF_MODIFF because that _would_ indicate a
wrap-around.  Apparently, there never was a problem but maybe I'm
completely wrong here.