How to change DisableURIPathEscaping ?

[leavest]

I GetObject use Chinese key but get error "The request signature we calculated does not match the signature you provided.".
I change DisableURIPathEscaping to true in source and get success.

aws source source code
new client with default DisableURIPathEscaping=true

aws-sdk-go-v2/service/s3/api_client.go

Line 631 in e211ac0

so.DisableURIPathEscaping = true

but in Signer.SignHTTP

aws-sdk-go-v2/aws/signer/v4/v4.go

Line 276 in e211ac0

for _, fn := range optFns {

DisableURIPathEscaping change to false
optFns has one member V4SignerAdapter.SignRequest

aws-sdk-go-v2/internal/auth/smithy/v4signer_adapter.go

Line 46 in e211ac0

err := v.Signer.SignHTTP(ctx, ca.Credentials, r.Request, hash, name, region, signingTime, func(o *v4.SignerOptions) {

after this line DisableURIPathEscaping change to false

How to change DisableURIPathEscaping in a new request ?
my code

        client := s3.New(s3.Options{
		EndpointResolverV2: &ResolverV2{URL: endpoint},
		Credentials: aws.CredentialsProviderFunc(func(ctx context.Context) (aws.Credentials, error) {
			return aws.Credentials{
				AccessKeyID:     AK,
				SecretAccessKey: SK,
			}, nil
		}),
		RetryMaxAttempts: 1,
	})
        input := s3.GetObjectInput{
		Bucket: &bucket,
		Key:    &req.Prefix,
	}
	output, err := client.GetObject(c, &input)