Fix zoom usage query to use distinct issue

app/models/issue.rb

@@ -65,7 +65,7 @@ class Issue < ApplicationRecord
 
   scope :public_only, -> { where(confidential: false) }
   scope :confidential_only, -> { where(confidential: true) }
-  scope :with_zoom_meetings, -> { joins(:zoom_meetings) }
+  scope :with_zoom_meetings, -> { joins(:zoom_meetings).select(:issues).distinct }
 
   after_commit :expire_etag_cache
   after_save :ensure_metrics, unless: :imported?

spec/lib/gitlab/usage_data_spec.rb

@@ -23,6 +23,7 @@ describe Gitlab::UsageData do
       create(:issue, project: projects[0])
       create(:zoom_meeting, project: projects[0], issue: projects[0].issues[0])
       create(:zoom_meeting, project: projects[0], issue: projects[0].issues[1], issue_status: :removed)
+      create(:zoom_meeting, project: projects[0], issue: projects[0].issues[1], issue_status: :removed)
       gcp_cluster = create(:cluster, :provided_by_gcp)
       create(:cluster, :provided_by_user)
       create(:cluster, :provided_by_user, :disabled)