service/s3: presigned PutObject with Tagging set does not add tagging to object in S3 bucket.

[jasdel]

Confirm by changing [ ] to [x] below to ensure that it's a bug:

• I've gone though the API reference
• I've checked AWS Forums and StackOverflow for answers
• I've searched for previous similar issues and didn't find any solution

Describe the bug
Objects uploaded to S3 ith presign Put Object URL withTagging parameter set, do not have the tagging metadata. The SDK hoists the x-amz-tagging header to the query string, which is ignored by S3. S3 requires the x-amz-tagging to be a signed header.

Version of AWS SDK for Go?
v0.31.0`

Version of Go (go version)?
v1.15.x

To Reproduce (observed behavior)

package main

import (
	"context"
	"fmt"
	"log"
	"os"
	"strings"

	"github.com/aws/aws-sdk-go-v2/aws"
	v4 "github.com/aws/aws-sdk-go-v2/aws/signer/v4"
	"github.com/aws/aws-sdk-go-v2/config"
	"github.com/aws/aws-sdk-go-v2/service/s3"
)

func main() {
	bucket := os.Args[1]
	key := os.Args[2]
	fileToPut := os.Args[3]

	presigned, err := getPresignedPut(context.TODO(), bucket, key)
	if err != nil {
		log.Fatalf("failed to get presigned URL, %v", err)
	}

	var headerStr strings.Builder
	for k, vs := range presigned.SignedHeader {
		for _, v := range vs {
			fmt.Fprintf(&headerStr, "-H \"%s: %s\" \\\n", k, v)
		}
	}
	fmt.Printf("curl -X %s \\\n%s-d @%s \\\n%q\n",
		presigned.Method, headerStr.String(), fileToPut, presigned.URL)
}

func getPresignedPut(ctx context.Context, bucket, key string) (*v4.PresignedHTTPRequest, error) {
	cfg, err := config.LoadDefaultConfig(ctx)
	if err != nil {
		return nil, fmt.Errorf("failed to load config, %w", err)
	}

	client := s3.NewPresignClient(s3.NewFromConfig(cfg))

	presigned, err := client.PresignPutObject(ctx, &s3.PutObjectInput{
		Bucket:  &bucket,
		Key:     &key,
		Tagging: aws.String("mytagname=mytagvalue"),
	})
	if err != nil {
		return nil, fmt.Errorf("failed to get PutObject presigned URL, %w", err)
	}

	return presigned, nil
}

Expected behavior
To be able to put the object to S3 with the tagged header.

Additional context
Add any other context about the problem here.

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[jasdel]

Workaround for this issue until tagged released is published is to go get the specific commit instead of a tagged version.

go get github.com/aws/aws-sdk-go-v2@58b543144e2a