pr.ConfigsUpdated.Insert(conf)
		}
	}

	return pr
}

// CopyMerge two update requests together. Unlike Merge, this will not mutate either input.
// This should be used when we are modifying a shared PushRequest (typically any time it's in the context
// of a single proxy)
func (pr *PushRequest) CopyMerge(other *PushRequest) *PushRequest {
	if pr == nil {
		return other
	}
	if other == nil {

				Kind: kind.Kind(2),
			}: {}}},
			PushRequest{Full: true, ConfigsUpdated: nil, Reason: nil},
		},
	}

	for _, tt := range cases {
		t.Run(tt.name, func(t *testing.T) {
			got := tt.left.CopyMerge(tt.right)
			if !reflect.DeepEqual(&tt.merged, got) {
				t.Fatalf("expected %v, got %v", &tt.merged, got)
			}
			got = tt.left.Merge(tt.right)
			if !reflect.DeepEqual(&tt.merged, got) {