[LyX/master] Fix backspace deletion of selected items with change tracking

[Jean-Marc Lasgouttes]

Le 13/01/2020 à 14:27, Jürgen Spitzmüller a écrit :
> Am Montag, den 13.01.2020, 14:05 +0100 schrieb Jean-Marc Lasgouttes:
>> I am a bit puzzled. parit points to a paragraph, but this paragraph
>> is
>> not in an InsetText? Where is it? In a table cell?
> 
> InsetTableCell probably.

OK, I guess the code is a bit better now. BTW, I see that you added 
support for tracking insertion/deletion of cells/columns in Tabular 
Inset. However, there is no way to guess what cell/column has been 
affected...

JMarc