API members documented in sphinx have an object name, which allow the
documentation to be linked from other projects. Sphinx calculates the
object name by prefixing the current module name to the directive
argument, e.g:

.. module:: foo
.. function:: bar.baz

becomes foo.bar.baz. Since these anchors aren't displayed in the
documentation, some mistakes have crept in, namely the Python stdlib
documentation currently contains the objects:

* asyncio.asyncio.subprocess.DEVNULL
* asyncio.asyncio.subprocess.PIPE
* asyncio.asyncio.subprocess.STDOUT
* asyncio.asyncio.subprocess.Process
* multiprocessing.sharedctypes.multiprocessing.Manager
* xml.etree.ElementTree.xml.etree.ElementInclude

As can be observed in the URL fragments:
https://docs.python.org/3/library/asyncio-subprocess.html#asyncio.asyncio.subprocess.Process
https://docs.python.org/3/library/multiprocessing.html#multiprocessing.sharedctypes.multiprocessing.Manager
https://docs.python.org/3/library/xml.etree.elementtree.html#xml.etree.ElementTree.xml.etree.ElementInclude.default_loader

I have a patch, prepared, I'll send a PR straight away.