[NTG-context] ugly bug

[Steffen Wolfrum]

> Am 02.06.2022 um 20:13 schrieb Wolfgang Schuster <wolfgang.schuster.lists at gmail.com>:
> 
> Steffen Wolfrum schrieb am 01.06.2022 um 14:03:
>> Hi,
>> 
>> several times I got problems with my publishing house when they noticed that the headerlines jump up and down on pages that end/begin with qoutes (i.e. smaller interlineskip), see example below: on page 1 the blackrule is about 1mm higher than on page 2.
>> 
>> In the past I then used really laborious workarounds to get these single pages in the correct way (without jumping)… manual pagebreak, re-define layout etc.
>> 
>> But as the pages are hard to find it would be better that the layout would be reliable consistent.
>> 
>> How can this be solved?
> 
> \defineinterlinespace[steffen][line=4.2ex]
> 
> \starttext
> 
> \dorecurse{2}{\samplefile{lorem}\par}
> 
> \start
> %\setuplocalinterlinespace[line=4.2ex]% wrong header alignment
> \setuplocalinterlinespace[steffen]% correct header alignment
> \dorecurse{4}{\samplefile{lorem}\par}
> \stop
> 
> \dorecurse{2}{\samplefile{lorem}\par}
> 
> \stoptext


ok, this minimal example works.

but for other reasons (lots of heading with various vertical spaces)!) I also need \setuplayout[grid=tolerant]


\setuplayout[grid=tolerant]% this kills the smaller interlinespace

\defineinterlinespace[steffen][line=4.2ex]

\starttext

\dorecurse{2}{\samplefile{lorem}\par}

\start
%\setuplocalinterlinespace[line=4.2ex]% wrong header alignment
\setuplocalinterlinespace[steffen]% correct header alignment
\dorecurse{4}{\samplefile{lorem}\par}
\stop

\dorecurse{2}{\samplefile{lorem}\par}

\stoptext


Any idea how to preserve the smaller interlinespace?
Steffen