Find data multiple expressions error

disk_out_ref.ex2, all variables, apply
find data with following choices:
hit "Run Selection Query"

With 5.8, you get the following error:

Traceback (most recent call last):
  File "/.../ParaView-5.8.0/lib/python3.7/site-packages/paraview/detail/python_selector.py", line 109, in execute
    insidedness = numpy_support.numpy_to_vtk(maskArray, deep=1, array_type=vtkConstants.VTK_SIGNED_CHAR)
  File "/.../ParaView-5.8.0/lib/python3.7/site-packages/vtkmodules/util/numpy_support.py", line 170, in numpy_to_vtk
    z_flat = numpy.ravel(z).astype(arr_dtype)
ValueError: setting an array element with a sequence.

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