fix support for multiple custom function filters
fix support for multiple custom function filters

https://github.com/vedmack/yadcf/issues/226

modulexcite/yadcf,vedmack/yadcf,vedmack/yadcf,sohamkanade/yadcf,modulexcite/yadcf,Golfer/yadcf,Golfer/yadcf,sohamkanade/yadcf