It is possible to create inconsistent extra SolutionArray entries

[ischoegl]

Problem description

Inconsistent extra entries for SolutionArray are not caught.

Steps to reproduce / Behavior

>>> gas = ct.Solution("air.yaml")
>>> states = ct.SolutionArray(gas, 3, extra={"prop": [5, 6, 7]}
>>> states.prop = "hello world"
>>> states.prop
'hello world'

I.e. states.prop is neither of correct type (should be np.ndarray) nor consistent in terms of dimensions.

System information

• Cantera version: 2.5.0b1
• OS: Ubuntu 18.04
• Python/MATLAB/other software versions: 3.6.9