Array.reindex fails when not specifying new axis name in dict

[gdementen]

>>> arr = ndtest(3)
>>> arr.reindex({'a': 'a1,a2,a3'})
[...]
KeyError: "axis 'a' not found in {{0}}"
>>> arr.reindex('a', 'a1,a2,a3')
a   a1   a2   a3
   1.0  2.0  nan
>>> arr.reindex({'a': 'a=a1,a2,a3'})
a   a1   a2   a3
   1.0  2.0  nan
>>> arr.reindex({'a': Axis('a=a1,a2,a3')})
a   a1   a2   a3
   1.0  2.0  nan

vs stumbled on this one

[gdementen]

The problem is also present using keyword arguments:

>>> arr = ndtest('age=19..25')
>>> # specifying the axis using the positional argument works
... arr.reindex('age', '20..26')
age   20   21   22   23   24   25   26
     1.0  2.0  3.0  4.0  5.0  6.0  nan
>>> # but not with a keyword argument
... arr.reindex(age='20..26')
KeyError: "axis 'age' not found in {{0}}"