Fix for non always existing property to index

My usecase:

__type__:string:node_auto_index publicId:string:node_auto_index name    reseller        registered:boolean      online:boolean
U       964c8274-69d5-4e1e-af20-be8bc2825a06@gmail.com  user 1  rf      true    false
U       1dd869f8-3c0e-4d3b-badf-146d96d80626@gmail.com  user 2  rf      true    false
U       1f285cde-9ec6-41cc-8990-2f0092ea79f9@gmail.com  user 3  rf      true    false
U               user 4  rf      false   false

i.e.: not always I have also a publicId to index on