numref not working with download in only block

[andreacassioli]

Hi,
I am trying to show code blocks with a link to the file for download in the block caption. The link should only appears in html. So I do

.. only:: html

   .. literalinclude:: my_file
      :caption: title :download:`click<filelink>`
      :name: code

.. only:: latex

   .. literalinclude:: my_file
      :caption: title
      :name: code

The code and the download link are displayed correctly, but if I try to refer to the block with

:numref:`code`

the link is broken. Any clue?

[andreacassioli]

OK, it seems not to be related with download, so I close the issue and make a new one.

[tk0miya]

In this case, you'd got a following warning on building docs:

WARNING: Duplicate explicit target name: "code".

The message was raised at second literalinclude.
because the only directive did not remove first literalinclude block. but It made the block invisible (still exists).

so the :numref: role refers the invisible one and the generated document looks like broken.
It seems a little strange, but it is a current specification. (see also #1717, #1488)