Wrong score in Partial Ratio

[fedxyz]

Hi,

I am using 1.4.0, this gives a wrong results with partial ratio:

FuzzySearch.partialRatio("ttttttttt virtuale ggggggggggggvo zizzrztuta mmmmmle", "virtuale"); 

the score is 50, it has to be 100 imho.

The python version returns 100 too:

>>> fuzz.partial_ratio("ttttttttt virtuale ggggggggggggvo zizzrztuta mmmmmle", "virtuale")
100

Thanks for the help