On 3/20/2021 10:52 PM, Hugo Landau wrote:
Thanks for ConTeXt, it is an amazing system.

The following test case demonstrates the bug.

   <?xml version="1.0" encoding="utf-8"?>
   <foo xmlns="http://www.example.com/ns/foo"; 
   <m:math version="2.0">
   <m:math version="2.0">

No output is produced. This has been verified with live.contextgarden.net.

In order for output to be produced, <m:union/> must be changed to <union> and
<m:selector/> must be changed to <selector/>, but these are in the wrong
namespace in this context. In other words, this bug applies to the keyword
element in an apply element.
in x-math.mkiv search for

   \startxmlsetups mml:apply

and replace this bit:

            \doifelsesetups {mml:apply:mml:\mmlapplyaction} {
             } {

(btw, isn't content mathml more fun than presentation mathml?)


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