[WPF] Ensure a first setup render gets triggered
[WPF] Ensure a first setup render gets triggered

mono/xwt,residuum/xwt,sevoku/xwt,iainx/xwt,cra0zy/xwt,antmicro/xwt,directhex/xwt,mminns/xwt,lytico/xwt,steffenWi/xwt,akrisiun/xwt,mminns/xwt,hwthomas/xwt,TheBrainTech/xwt,hamekoz/xwt