BUG: np.select does not return values in choicelist when default used is empty list

Describe the issue:

I want to have empty list as default value of np.select.

When the default value is selected to be an empty list or tuple, choicelist will be overwritten from [array(1), array(2), array(3), array([], dtype=float64)] to [array([], dtype=int64), array([], dtype=int64), array([], dtype=int64), array([], dtype=float64)]
after choicelist = np.broadcast_arrays(*choicelist) in function_base.py.

The result is that I get array([], dtype=float64) returned when i expect 3 to be returned (because the conditions are False,False,True corresponding to 1,2,3).

Reproduce the code example:

import numpy as np

conds = [False, 
         False, 
         True]

print(np.select(conds, [1,2,3], default=[]))

### Error message:

_No response_

### NumPy/Python version information:

1.21.4 3.8.12 (default, Dec  8 2021, 11:22:00) 
[Clang 12.0.5 (clang-1205.0.22.11)]

Start at np.select and the choicelist broadcasting in function_base.py, then run the supplied reproduction with an empty-list default. Trace why broadcasting changes the scalar choices and add or update coverage for this case. Done means the True condition returns 3 while the empty-list default remains supported.