Re: [Dev-luatex] Lower limit for math operators lost if kern <= 0

On Mon, Apr 20, 2020 at 2:27 PM Marcel Fabian Krüger wrote:

Look at the following document:

\Umathlimitbelowbgap\displaystyle0pt \Umathlimitbelowvgap\displaystyle0pt $$ \sum_a^b $$ \bye

Here the `a` subscript gets lost. In mlist.c, make_op, line 3324 the subscript (stored in variable `z`) is never coupled with the previous node if `shift_down` is smaller or equal to 0.

fixed in revision 7358. -- luigi