broken_master_label_nudger has not been invoked since February

Bug

I haven't seen gitlab-bot nudging for a broken master label since February. The timing of this bug appears to coincide with Support listening to incident events (!1940 - merged) but I don't know for sure if this is related.

• processor: broken_master_label_nudger.rb
• I used this search for the comment phrase please add a concrete, and noticed the automation was last working in February.

Latest example: gitlab-org/quality/engineering-productivity/master-broken-incidents#3344 (closed)

• It was closed without a concrete master-broken:: label, but it didn't trigger broken_master_label_nudger.
• I was not able to find the logging for this event when searching for event processing log in gcp with the following query

"Event processing"

jsonPayload.event_class="Triage::IncidentEvent"
jsonPayload.event_key="incident.close"
jsonPayload.event_payload.project.id="40549124"
jsonPayload.event_payload.object_attributes.iid="3344"

Notice the iid is set to 3344 for gitlab-org/quality/engineering-productivity/master-broken-incidents#3344 (closed), and it returns 0 entry. But if I change the iid to 3345, it works.