fix: keep baseline scale to baseline 0 even if set to None#18663

Merged

timhoffm merged 2 commits intomatplotlib:masterfrom

andrzejnovak:stickies

Oct 12, 2020

Commits on Oct 5, 2020

fix: update datalim in stairs
andrzejnovak
committed

Commits on Oct 6, 2020

test: stairs baseline=None
andrzejnovak
committed