[NTG-context] Vanishing floats with location=split and \start ... \stopsplittext within

["Давыдов, Кирилл Александрович" <davidov_ka@edu.surgu.ru>]

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Greetings,

I have run into an issue whilst using \start ... \stopsplittext. I intended
to use it for large code listings (using the t-vim module), however floats
with location=split using that environment seem to vanish if there is
nearly not enough text before the float to fill a page. Not only that, a
second float like that seems to lead to fatal errors related to an unclosed
group, however the document compiles regardless. The following MWE is an
example of this. I am using ConTeXt version 2024.05.27 18:16.

\definefloat[codelisting][codelistings]
\setupcaption[codelisting][location=top]
\setuplabeltext[english][codelisting=Listing ]

%\showboxes
\starttext

\input knuth
\input knuth
\input knuth
\input knuth
% Filler. Filler. Filler. Filler. % uncomment to push out a full page. the
float will appear

\startplacecodelisting[
    title=My great C program on display!,
    location=split,
]
\startsplittext
\tt \input zapf
\stopsplittext
\stopplacecodelisting

\input ward

\startplacecodelisting[
    title=My second great C program on display!,
    location=split,
]
\startsplittext
\tt \input ward
\stopsplittext

\stoptext

On a related note, one can also observe that with specific amounts of text
a float may end up being split in two on a single page, however I could not
replicate it. Additionally, code listings done with t-vim's commands seem
to lose line numbering within \start ... \stopsplittext in splittable
floats, but I figure that's more on the module authors. In any case, is
there more I can do other than not use floats for code listings?

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