Remove empty data fallback to input raw values
Remove empty data fallback to input raw values

This logic added on zenframework/zf2#5271 makes impossible determinate on the loop when the data was set or if it using a fallback value.

MadCat34/zend-inputfilter,stefanotorresi/zend-inputfilter,zendframework/zend-inputfilter,zf2timo/zend-inputfilter,Blinden/zend-inputfilter,Maks3w/zend-inputfilter,akomm/zend-inputfilter