Display of left-indented long-table in a branch

[Jean-Marc Lasgouttes]

Le 10/06/2021 à 07:59, Kornel Benko a écrit :
> I have an old lyx-file which has a long-table in a branch. See MWE.
> 
> I added a second long-table, but am unable to create an equivalent to the first table.
> 
> The display of the first branch is wrong.
> 
> How can I set/reset the indentation?

So indeed your first paragraph, and the first brancg each have a 
leftindent value of -1cm. This leftindent has been introduce almost 20 
years ago:

==================
commit e4fffd74bc3f4b072929a5d3729bede295829764
Author: Jürgen Vigna <jug at sad.it>
Date:   Wed May 8 12:58:16 2002 +0000

     This is the ParagraphIndent stuff compatibility. All of it only the 
GUI for
     inputing/changing values is missing, but this (if) will come after 
1.2.0.
===================

I have see no evidence that the GUI has ever been implemented!

The way of setting it is:

/*!
  * \var lyx::FuncCode lyx::LFUN_PARAGRAPH_PARAMS
  * \li Action: Change paragraph settings.
  * \li Notion: Modifies the current paragraph, or currently selected 
paragraphs.
                This function only modifies, and does not override, 
existing settings.
                Note that the "leftindent" indent setting is deprecated.
  * \li Syntax: paragraph-params [<INDENT>] [<SPACING>] [<ALIGN>] [<OTHERS>]
  * \li Params: <INDENT>:  \noindent|\indent|\indent-toggle|\leftindent 
LENGTH\n
                <SPACING>: \paragraph_spacing 
default|single|onehalf|double|other SIZE \n
                <ALIGN>:   \align block|left|right|center|default\n
                <OTHERS>:  \labelwidthstring WIDTH|\start_of_appendix
  * \li Origin: rgh, Aug 15 2007
  * \endvar
  */

Note that the setting is "deprecated" :)

I guess it is time to get rid of this thing. I am not sure how you got 
it into your document.

JMarc