date picker no longer sets a value if empty
date picker no longer sets a value if empty

ramiusGitHub/WCF,SoftCreatR/WCF,Morik/WCF,SoftCreatR/WCF,Cyperghost/WCF,NBZ4live/WCF,WoltLab/WCF,WoltLab/WCF,WoltLab/WCF,cashcat/WCF-1,ramiusGitHub/WCF,MeinAccount/WCF,MenesesEvandro/WCF,MenesesEvandro/WCF,0xLeon/WCF,SoftCreatR/WCF,WoltLab/WCF,0xLeon/WCF,Morik/WCF,joshuaruesweg/WCF,Cyperghost/WCF,Morik/WCF,cashcat/WCF-1,0xLeon/WCF,Cyperghost/WCF,Morik/WCF,MeinAccount/WCF,PhrozenByte/WCF2,SoftCreatR/WCF,Cyperghost/WCF,joshuaruesweg/WCF,PhrozenByte/WCF2,NBZ4live/WCF,Cyperghost/WCF,joshuaruesweg/WCF