v1.12.7 shows "Content block expected for the "note" directive; none found" with multiple lines of notes

[ysk24ok]

Hello maintainers.

I have a function which has multiple lines of notes, like this:

def func(param1: str) -> None:
    """Do something.

    Args:
        param1: A parameter.

    Note:
        Some notes.
        Some more notes.
    """
    print("Do something")

Using v1.12.7, running sphinx-build throws an error and a warning like this:

ERROR: Content block expected for the "note" directive; none found.
WARNING: Explicit markup ends without a blank line; unexpected unindent.

Debugging with -vv option, logs show how the method is converted. Seems :rtype: is inserted in a wrong place.

.. py:function:: func(param1)
   :module: pykit.grpc

   Do something.

   :type param1: :py:class:`str`
   :param param1: A parameter.

   .. note::
   :rtype: :py:obj:`None`

      Some notes.
      Some more notes.

This code works fine with v1.12.1, but fails with v1.12.7.
A function with one line of notes works fine with both versions.
Is this an expected or unexpected behavior?

[hoodmane]

Is this an expected or unexpected behavior?

Unexpected. Thanks for the report!

[hoodmane]

This is another problem caused by docutils being inconsistent about adding line numbers to things. I added an upstream bug report:
https://sourceforge.net/p/docutils/bugs/465/
For now we can just patch it.

[ysk24ok]

@hoodmane Thank you for the quick fix! Would it be possible to release a patch version (v1.12.8)?