Fix type PermissionKey::add()
Fix type PermissionKey::add()

Fix type PermissionKey::add()

- Change `$$pkHasCustomClass` to `$pkHasCustomClass`


Former-commit-id: ba7e02c86f69d70de70bd6aa628fc204e21276a2
deek87/concrete5,mlocati/concrete5,concrete5/concrete5,KorvinSzanto/concrete5,rikzuiderlicht/concrete5,KorvinSzanto/concrete5,concrete5/concrete5,a3020/concrete5,biplobice/concrete5,biplobice/concrete5,deek87/concrete5,deek87/concrete5,acliss19xx/concrete5,rikzuiderlicht/concrete5,triplei/concrete5-8,biplobice/concrete5,concrete5/concrete5,a3020/concrete5,hissy/concrete5,haeflimi/concrete5,hissy/concrete5,jaromirdalecky/concrete5,hissy/concrete5,KorvinSzanto/concrete5,MrKarlDilkington/concrete5,biplobice/concrete5,acliss19xx/concrete5,triplei/concrete5-8,MrKarlDilkington/concrete5,olsgreen/concrete5,mainio/concrete5,jaromirdalecky/concrete5,mlocati/concrete5,concrete5/concrete5,jaromirdalecky/concrete5,MrKarlDilkington/concrete5,haeflimi/concrete5,mainio/concrete5,triplei/concrete5-8,deek87/concrete5,hissy/concrete5,mlocati/concrete5,mainio/concrete5,rikzuiderlicht/concrete5,olsgreen/concrete5,mlocati/concrete5,acliss19xx/concrete5,olsgreen/concrete5,jaromirdalecky/concrete5,haeflimi/concrete5,haeflimi/concrete5