Since ConTexT last upgrade (ltmx 2023.09.18 21:13), I have a document that
won't compile with ConTexT. The problem seems to occur when using mathcases
with some ConTeXt provided fonts, including pagella. This is a minimal not
working example :


\delta_{ij} =
 \NC 1 \NC \text{if } i = j \NR
 \NC 0 \NC \text{otherwise} \NR

The error is :
run callback [44]:
...ext/tex/texmf-context/tex/context/base/mkxl/math-fnt.lmt:56: table index
is nil\nstack traceback:\n
...ext/tex/texmf-context/tex/context/base/mkxl/math-fnt.lmt:56: in
metamethod 'index'\n
...ext/tex/texmf-context/tex/context/base/mkxl/math-fnt.lmt:104: in
function <...ext/tex/texmf-context/tex/context/base/mkxl/math-fnt.lmt:62>\n
[C]: in upvalue 'builders_kernel_mlisttohlist'\n [string \"local tonut  =
nodes.tonut...\"]:43: in function <[string \"local tonut  =
nodes.tonut...\"]:18>\n (...tail calls...)\n
...ext/tex/texmf-context/tex/context/base/mkxl/math-noa.lmt:2986: in
function <...ext/tex/texmf-context/tex/context/base/mkxl/math-noa.lmt:2984>

My system is : FreeBSD 64bits

Thank you for any help.
Vincent Picard
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