Hover issue in subplots when adding parallel coordinates

When using combined subplot the hover for "xy" and "polar" charts does not work when combining those types with a parallel coordinates chart. The "scene" chart type is not affected. If commenting the par. coord. and uncomenting the pie chart, it works...
Python 2.7, plotly 4.1.1.

from plotly.subplots import make_subplots
import plotly.graph_objects as go

fig = make_subplots(
    rows=2, cols=2,
    specs=[[{"type": "xy"}, {"type": "polar"}],
           [{"type": "domain"}, {"type": "scene"}]],
)

fig.add_trace(go.Bar(y=[2, 3, 1]),
              row=1, col=1)

fig.add_trace(go.Barpolar(theta=[0, 45, 90], r=[2, 3, 1]),
              row=1, col=2)

fig.add_trace(go.Parcoords(dimensions = list([ dict(label = 'x', values = [1,2,-1]),
                                               dict(label = 'y', values = [1,-2,1]),
                                               dict(label = 'f_1(x,y)', values = [-1,2,1]),
                                               dict(label = 'f_2(x,y)', values = [-1,-2,1])])
                          ),
              row=2, col=1)

#fig.add_trace(go.Pie(values=[2, 3, 1]),
#              row=2, col=1)

fig.add_trace(go.Scatter3d(x=[2, 3, 1], y=[0, 0, 0], z=[0.5, 1, 2], mode="lines"),
              row=2, col=2)

fig.update_layout(height=700, showlegend=False)

fig.show()

Start by running the provided Python reproduction with the stated Plotly versions and compare hover behavior for xy and polar subplots with and without the parallel coordinates trace. Trace the hover handling used by these subplot types; done means hover works for xy and polar charts when combined with parallel coordinates, without regressing scene charts.