Bug summary

In sunpy we have a doctest that is inside a plot directive, that also has some doctest flags, in particular doctest: +REMOTE_DATA. Building the docs with matplotlib 3.4.3 works fine, but with 3.5.0 it fails.

Code for reproduction

.. plot::
   :include-source:

   sunpy Map uses coordinates to specify locations on the image, and to plot
   overlays on plots of maps. When a Map is created, a coordinate frame is
   constructed from the header information. This can be accessed using
   ``.coordinate_frame``:

   >>> import sunpy.map
   >>> from sunpy.data.sample import AIA_171_IMAGE   # doctest: +REMOTE_DATA
   >>> m = sunpy.map.Map(AIA_171_IMAGE)  # doctest: +REMOTE_DATA

Actual outcome

/Users/dstansby/github/sunpy/docs/guide/units-coordinates.rst:200: WARNING: line 7 of the doctest for <string> has an invalid option: '+REMOTE_DATA'

Expected outcome

No warning raised.

Additional information

No response

Operating system

macOS

Matplotlib Version

3.5.0

Matplotlib Backend

No response

Python version

3.9.6

Jupyter version

No response

Installation

pip