datashade kdim dates change to float if vdim all same value

[douglasmacdonald]

'1.12.1'

This renders as expected

datashade(hv.Curve(pd.DataFrame({'t':pd.date_range('2018-01-01', periods=2000, freq='H'), 'v':np.arange(2000)})))

Changing the values to all ones result in a rendered x-axis between -1 and 1.

pd.date_range('2018-01-01', periods=2000, freq='H') datashade(hv.Curve(pd.DataFrame({'t':pd.date_range('2018-01-01', periods=2000, freq='H'), 'v':np.ones(2000)})))

Full code (change to ones to break)

import pandas as pd
import holoviews as hv 
from holoviews.operation.datashader import datashade

hv.extension('bokeh')
renderer = hv.renderer('bokeh')

datashade(hv.Curve(pd.DataFrame({'t':pd.date_range('2018-01-01', periods=2000, freq='H'), 'v':np.arange(2000)})))```

[philippjfr]

Seems to be fixed.

[github-actions]

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