[Fluxus] crash at non-existent font

[gabor papp]

> I don't think it used to be like this, but now I get a crash of Fluxus at
> attempting to load a .ttf file that that doesn't exist. To be precise; I
i found a bug that might have caused this. a primitive id was returned 
even if the font was not found. this caused a crash when the object was 
destroyed on clear. it is fixed in git. thanks for the report.

best,
gabor