combination with lua

[Adam Reviczky via ntg-context <ntg-context@ntg.nl>]

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Hi,

I am trying to use a combination figure with luacode (both with latest MKIV
and LMTX).
However, the figures do not line up in the grid of the combination.

I get the correct result with examples 1 and 2 below, but example 3 using
lua functions for combination and externalfigure is what I wanted to use in
the first place.

MWE:

\starttext

\startluacode

-- Combination 1
context.startplacefigure({title = "Figure"})
context.startcombination({nx = "2", ny = "2"},

"\\externalfigure[cow][width=50mm]","Caption 1",
"\\externalfigure[cow][width=50mm]","Caption 2",
"\\externalfigure[cow][width=50mm]","Caption 3",
"\\externalfigure[cow][width=50mm]","Caption 4"
)

context.stopcombination()
context.stopplacefigure()

-- Combination 2

context.startplacefigure({title = "Figure"})
context.startcombination({nx = "2", ny = "2"},

"Picture 1","Caption 1",
"Picture 2","Caption 2",
"Picture 3","Caption 3",
"Picture 4","Caption 4"
)

context.stopcombination()
context.stopplacefigure()

-- Combination 3

context.startplacefigure({title = "Figure"})
context.startcombination({nx = "2", ny = "2"},

context.externalfigure({"cow"},{width = "50mm"}),"Caption 1",
context.externalfigure({"cow"},{width = "50mm"}),"Caption 2",
context.externalfigure({"cow"},{width = "50mm"}),"Caption 3",
context.externalfigure({"cow"},{width = "50mm"}),"Caption 4"
)

context.stopcombination()
context.stopplacefigure()

\stopluacode
\stoptext

Any hints on what I am doing wrong in example 3?

Thanks,
Adam

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