Construction of transformation doesn't complete with fixed points.

[hivert]

Python 3.6.9 (default, Nov  7 2019, 10:44:02) 
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from libsemigroups_cppyy import Transformation
>>> Transformation([9, 3, 1, 2, 0, 8, 1, 2, 0, 5])
Transformation([9, 3, 1, 2, 0, 8, 1, 2, 0, 5, 0, 0, 0, 0, 0, 0])

This should be

Transformation([9, 3, 1, 2, 0, 8, 1, 2, 0, 5, 10, 11, 12, 13, 14, 15])

In HPCombi

PTransf16({}) == PTransf16::one();

[hivert]

It seem to be a strange behavior of CPPYY. Worked around in #11

I reported the problem on

https://bitbucket.org/wlav/cppyy/issues/191/cppyy-does-not-take-the-direct-constructor