I cannot reproduce the bug in Bison 2.0 (the current stable release). It has many improvements to glr.c in this area, and for now I'm going to assume that they have fixed the bug.
You can get it here: ftp://ftp.gnu.org/gnu/bison/bison-2.0.tar.gz -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]