},
		},
		{
			metadata: map[string]string{
				"x-amz-object-lock-mode": "governance",
			},
			expected: map[string]string{
				"x-amz-object-lock-mode": "governance",
			},
			filterRetention: false,
		},
		{
			metadata: map[string]string{
				"x-amz-object-lock-mode":              "governance",
				"x-amz-object-lock-retain-until-date": "2020-02-01",
			},