[NTG-context] line with height=0 in TABLE

[Peter Münster]

Hello,

I would like to have a line with zero height in a TABLE, but it seems to be
more difficult, than I thought:

\starttext
\setupTABLE[r][2][height=0pt,offset=0pt]
\bTABLE
\bTR \bTD bla \eTD \eTR
\bTR \bTD \eTD \eTR
\bTR \bTD bla \eTD \eTR
\eTABLE
\stoptext

There is still some height in line 2...
How could I get rid of this please?

Greetings, Peter

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