Better fix for plotly_domain. (more)
Better fix for plotly_domain. (more)

Now each `graph` remembers the domain it was created with.
plotly/python-api,ee-in/python-api,plotly/plotly.py,ee-in/python-api,plotly/python-api,plotly/plotly.py,plotly/python-api,ee-in/python-api,plotly/plotly.py