Don't crash when a GraphQL-requested workspace (with the random argument) doesn't exist

app/graph/types/query_type.rb

@@ -82,11 +82,12 @@ def me
 
   def team(id: nil, slug: nil, random: nil)
     tid = id.to_i
+    team = nil
     unless slug.blank?
       team = Team.where(slug: slug).first
       tid = team.id unless team.nil?
     end
-    team.reload if random
+    team.reload if team && random
     tid = Team.current&.id || User.current&.teams&.first&.id if tid === 0
     GraphqlCrudOperations.load_if_can(Team, tid.to_i, context)
   end

test/controllers/graphql_controller_11_test.rb

@@ -377,4 +377,24 @@ def teardown
     assert_equal pm1.created_at.to_i, response['media_cluster_origin_timestamp']
     assert_equal CheckMediaClusterOrigins::OriginCodes::USER_ADDED, response['media_cluster_origin']
   end
+
+  test "should not crash if workspace doesn't exist" do
+    t = create_team
+    u = create_user
+    create_team_user team: t, user: u, role: 'admin'
+    authenticate_with_user(u)
+    t.delete
+
+    query = <<~GRAPHQL
+      query {
+        team(slug: "#{t.slug}", random: "123456") {
+          name
+        }
+      }
+    GRAPHQL
+
+    post :create, params: { query: query, team: t.slug }
+    assert_response :success
+    assert_match /ActiveRecord::RecordNotFound/, @response.body
+  end
 end