Only one fandango object possible at times when using the API

[ninjafail]

I'm not entirely sure whether this is intended but I just stumbled upon this.
When using the fandango python API, it is apparently not possible to use multiple Fandango() objects simultaneously. If want to use two different grammars simultaneously they end up being the same.

In the following example the grammars end up being the same.

from fandango import Fandango

grammar1 = "<start> ::= '1'+"
grammar2 = "<start> ::= '2'+"

f1 = Fandango(grammar1)
f2 = Fandango(grammar2)

assert f1.grammar != f2.grammar

[joszamama]

Thank you very much for opening an issue! We have just confirmed the bug, and we are working on a fix right now.