Error with `MultiIndex.from_product` with list of `Index`s

[stephenlrandall]

Describe the bug

Errors are reported with MultiIndex.from_product when using Index:

import pandas as pd

labels = ["a", "b", "c"]
index = pd.Index(labels)

display(pd.MultiIndex.from_product([labels, labels]))
display(pd.MultiIndex.from_product([index, index]))

[stephenlrandall]

Apologies, just saw #1249!