Epochs: Baseline-Default problems

[marsipu]

Describe the bug

Their are two problems regarding the Baseline-Argument of the Epochs-Classes:

1. The default-value (None, 0) is not correctly formatted by sphinx.ext.autodoc and results in "baseline=None, 0, ...
2. Epochs-Array doesn't have the same default-value as the other Epochs-Classes (None instead of (None, 0).

[larsoner]

For EpochsArray I think that choice is intentional. If you do EpochsArray we probably shouldn't modify the array by default. For Epochs probably you want a baseline. So maybe just a .. note:: in the EpochsArray docs saying it's different from Epochs is a good choice.

For the docs of a tuple being broken, someone will have to look into it. I have a feeling numpy/numpydoc#221 or some similar refactoring in numpydoc could be to blame. If you want to try git bisect on Sphinx and/or numpydoc feel free -- if you're not up for it let me know and I'll give it a shot.

[larsoner]

Upstream bug filed sphinx-doc/sphinx#8052

[marsipu]

Thank you @larsoner, sorry, I somehow missed your response. Thanks for fixing it