Filter forms: fix regression with checkboxes xibosignage/xibo#2928
Filter forms: fix regression with checkboxes xibosignage/xibo#2928

xibosignage/xibo-cms,xibosignage/xibo-cms,xibosignage/xibo-cms,xibosignage/xibo-cms,xibosignage/xibo-cms,xibosignage/xibo-cms