Merge paragraphs of different non-Default/Plain Layouts

[Daniel]

On 2020-07-21 21:13, Daniel wrote:
> I am always a little stumped that it is not allowed to merge two 
> paragraphs by pressing backspace (delete) at the first (last) position 
> of a paragraph where there is another layout in the previous (next) 
> paragraph.
> 
> I think I found the passage in the source which sound as if this is an 
> important idea:
> 
>      // FIXME: Do we really not want to allow this???
>      // Pasting is not allowed, if the paragraphs have different
>      // layouts. I think it is a real bug of all other
>      // word processors to allow it. It confuses the user.
>      // Correction: Pasting is always allowed with standard-layout
>      // or the empty layout.
>      else if (par.layout() == prevpar.layout()
>           || tclass.isDefaultLayout(par.layout())
>           || tclass.isPlainLayout(par.layout())) {
>          cur.recordUndo(prevcur.pit());
>          mergeParagraph(bufparams, plist, prevcur.pit());
>          needsUpdate = true;
>      }
> 
> Unfortunately, I don't see why it is such a bad idea to merge in this 
> case. Maybe someone can enlighten me. I find it hard to train my brain 
> to consider the layout circumstances when trying to merge paragraphs. 
> Hence, I would suggest to remove the check.
> 
> Best,
> Daniel
> 

Ticket with patch created at https://www.lyx.org/trac/ticket/11917.

Daniel