Geo: number of unverified is negative in grafana dashboard

Summary

Grafana dashboard for the primary Geo node (on Azure) (https://performance.gitlab.net/d/000000286/gcp-failover-azure?orgId=1&var-environment=prd) shows negative numbers for the Geo repository verification "Unverified"

What is the expected correct behavior?

Unverified repositories and wikis should be 0 or greater

Relevant logs and/or screenshots