### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

Note: I create this bug as I didn't get an answer in another related [issue](https://github.com/localstack/localstack/issues/98#issuecomment-929993979) (#98).

After restarting localstorage, when I do a S3 getObject of a file, it gives me the file with some extra chunk-signature data. Example: 
```json
1e5;chunk-signature=83a45ce7e9db52171538036b946102068a9f2005c53049b23c63515f1c048fbc
{ "test": "this is a test json" }
0;chunk-signature=bd812928970799e2d5d16a86900629155d7d38aba42ed2dcbc7d6559c364671f
```

### Expected Behavior

The behaviour expected is getting the object without the extra chunk-signature data as it breaks parsing the file after.

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

In order to easily reproduce this bug, I've created a [repository](https://github.com/herrlegno/localstack-s3-signature-error).

# Steps:
* Create a s3 bucket named: test
* Run 1º test (the one with (Order(1) decorator)
* After the test has successfully passed, restart the localstack container.
* Run only the "extendsS3Object" (Order(2) decorator) test or download the file "test.json" from s3 through awscli.

The file will look like something like this:
```json
19;chunk-signature=f64cba77c6523187a1448fd7bd9cd739ce9d953c951af6fe34ac787b8b8f60d6
{"foo":"bar"}
0;chunk-signature=fcc672670aab469d7e23cd6eeea9cb5639feca2f065510bcfb77f057bb391c9b
```


### Environment

```markdown
- OS: Pengwin WSL (but also tried in a native ubuntu 20.10)
- LocalStack: latest
- AWS Java S3 Client: 1.11.73
```


### Anything else?

_No response_
for key, value in query_map.items():
        if key.lower().startswith(OBJECT_METADATA_KEY_PREFIX):
            if headers.get(key) is None:
                headers[key] = value[0]
def fix_location_constraint(response):
    """Make sure we return a valid non-empty LocationConstraint, as this otherwise breaks Serverless."""
    try:
        content = to_str(response.content or "") or ""
    except Exception:
        content = ""
    if "LocationConstraint" in content:
        pattern = r"<LocationConstraint([^>]*)>\s*</LocationConstraint>"
        replace = r"<LocationConstraint\1>%s</LocationConstraint>" % aws_stack.get_region()
        response._content = re.sub(pattern, replace, content)
        remove_xml_preamble(response)
def fix_range_content_type(bucket_name, path, headers, response):
    
    if "Range" not in headers:
        return
    if response.status_code >= 400:
        return
    s3_client = aws_stack.connect_to_service("s3")
    path = urlparse.urlparse(urlparse.unquote(path)).path
    key_name = extract_key_name(headers, path)
    result = s3_client.head_object(Bucket=bucket_name, Key=key_name)
    content_type = result["ContentType"]
    if response.headers.get("Content-Type") == "text/html; charset=utf-8":
        response.headers["Content-Type"] = content_type
def fix_delete_objects_response(bucket_name, method, parsed_path, data, headers, response):