elasticsearch 6 Load more is not working

[tmanninger]

Hi,

i am using elasticsearch 6.

If i open "Alerts" in the 411 gui and click on the Button "Load 100" to load more alerts, the query fails,
411 executes the following query:
(state:(0 OR 1)) AND assignee:3 AND assignee_type:0 AND escalated:0 AND search_id:50 AND state:1

escalated is a boolean, and only supports false or true as value since elasticsearch 6:
See: elastic/elasticsearch#22200

The query must changed to:
(state:(0 OR 1)) AND assignee:3 AND assignee_type:false AND escalated:0 AND search_id:50 AND state:1