reStructuredText reader doesn't support nested internal hyperlink targets

[haxtibal]

docutils allows to target individual list items by nesting internal hyperlink targets at the end of indented text blocks.

pandoc doesn't support it

$ pandoc -v | head -n 1
pandoc 2.9.2.1
$ echo '
* bullet list

  .. _`second item`:

* second item, with hyperlink target.

Jump to `second item`_.' | pandoc -f rst > /dev/null
[WARNING] Reference not found for 'second item' at line 8 column 23

Note that the following works (internal target not nested)

* bullet list

.. _`second item`:

* second item, with hyperlink target.

but isn't exactly the same. Here pandoc creates two distinct tables in the AST, the second one wrapped in a Div. As a workaround I'm currently using Lua filters to detect such split tables and merge them by AST transformations.