Stack.horizontal = False does not work

[mikaelho]

I would expect horizontal=False to have the same effect as leaving the parameter out. This would mean that my code can have a Boolean variable to control this.

In practice horizontal=False, looks the same as horizontal=True, see this repl.

This seems to be a bug on the server side, as the Python code looks the same for this boolean attribute as for every other one - or then all the boolean attributes would have this issue, which seems unlikely.

[FeodorFitsner]

Indeed, there is a bug. Thanks for reporting it. Will release a patch shortly.