Widget number always display 0 when asking to count relationships "contains"

[lndrtrbn]

Description

In the dashboard. When I create a widget Number on knowledge graph and I create a filter "relationship type = contains" I always have 0 as result even if there are relationships of this type.

Environment

1. OS (where OpenCTI server runs): { e.g. Mac OS 10, Windows 10, Ubuntu 16.4, etc. }
2. OpenCTI version: 5.1.33
3. OpenCTI client: frontend
4. Other environment details:

Reproducible Steps

Steps to create the smallest reproducible scenario:

1. Go to a dashboard.
2. Add a new widget.
3. Select "Number" and "Knowledge graph".
4. Add a filter "Relationship type = contains".
5. Create.

Expected Output

Display the real number of relationships.

Actual Output

Display 0.

Additional information

Same filter but with widget vertical bar which is working.