[Bug] Filter on CustomField Integer doesn't work

[azgaviperr]

Request Type

Bug

Work Environment

Question	Answer
TheHive version / git hash	4.18.1

Problem Description

I am using a Custom Field to score the quality of investigation.

Unfortunatly I am unable to filter on the values. Either on the main case page or in Dashboard.

Steps to Reproduce

1. Create an integer CustomField
2. Try to filter on it.