masked array: The unit of the quantity is stripped.

[jparal]

strange behavior for masked_array. i wonder if this is a bug?

import pint
import numpy as np
units = pint.UnitRegistry(autoconvert_offset_to_baseunit=False)
# OK
np.ma.masked_array(data=[1], mask=[False]) * units.cm
# UnitStrippedWarning: The unit of the quantity is stripped.
np.ma.masked_array(data=[1], mask=[False]) * units('cm')

[dopplershift]

Duplicate of #633 I think.

[hgrecco]

Revisit after #905

[jthielen]

This can be closed as a duplicate of #633 as @dopplershift mentioned? It wasn't fixed in #905, or the incoming downcast compatibility follow-up, and instead seems to be an upstream issue (numpy/numpy#15200).