Fix SQL error in DatabaseItemList class when filtering by empty array.
Fix SQL error in DatabaseItemList class when filtering by empty array.


Former-commit-id: a5f84aecd9f3b00cc4ca633e6d5e8b190bb4066b
haeflimi/concrete5,concrete5/concrete5,KorvinSzanto/concrete5,haeflimi/concrete5,mainio/concrete5,hissy/concrete5,mainio/concrete5,MrKarlDilkington/concrete5,acliss19xx/concrete5,hissy/concrete5,KorvinSzanto/concrete5,olsgreen/concrete5,acliss19xx/concrete5,jaromirdalecky/concrete5,triplei/concrete5-8,hissy/concrete5,triplei/concrete5-8,concrete5/concrete5,hissy/concrete5,rikzuiderlicht/concrete5,a3020/concrete5,triplei/concrete5-8,olsgreen/concrete5,jaromirdalecky/concrete5,biplobice/concrete5,mlocati/concrete5,biplobice/concrete5,mlocati/concrete5,deek87/concrete5,jaromirdalecky/concrete5,rikzuiderlicht/concrete5,KorvinSzanto/concrete5,concrete5/concrete5,deek87/concrete5,mlocati/concrete5,mainio/concrete5,rikzuiderlicht/concrete5,deek87/concrete5,biplobice/concrete5,MrKarlDilkington/concrete5,olsgreen/concrete5,a3020/concrete5,mlocati/concrete5,concrete5/concrete5,haeflimi/concrete5,haeflimi/concrete5,acliss19xx/concrete5,biplobice/concrete5,MrKarlDilkington/concrete5,deek87/concrete5,jaromirdalecky/concrete5