Transform on columnIndex with MultiIndex is broken in 1.4.0

[vitaliknet]

It appears after 1.4.0 transform refactoring the following code no longer works.

dg_ind.transform([{'type': 'filter', 'columnIndex': 1, 'operator': 'in',
'value': ['A', 'AA']
}])

dg_ind.data.index
MultiIndex([('2024-12-16 00:00:00+00:00', 'A'),
('2024-12-16 00:00:00+00:00', 'AA'),
...
('2024-12-16 00:00:00+00:00', 'ZZZ')],
names=[('date', ''), ('ticker', '')], length=8965)

Something like below does not work either.

dg_ind.transform([{'type': 'filter', 'column': ('ticker', ''), 'operator': 'in',
'value': ['A', 'AA']
}])