Unable to pass version to s3:CopyObject
I'm trying to copy a specific version of an object from one s3 bucket to another by adding ?versionId=someversion to the CopySource parameter of s3.copy_object. It looks like the code assumes that the value should be urlencoded, so it mangles the value.

```
        args = {
            'CopySource': '/{}/{}?versionId={}'.format(source_bucket, source_key, version),
            'Bucket': dest_bucket,
            'Key': dest_key,
        }
        session.create_client('s3').copy_object(**args)
```

```
DEBUG:botocore.endpoint:Making request for <botocore.model.OperationModel object at 0x108220a50> (verify_ssl=True) with params: {'query_string': {}, 'headers': {u'x-amz-copy-source': '/source_bucket/source_key%3FversionId%3DabCdeCghIjkLmnOp'}, 'url_path': u'/dest_bucket/dest_key', 'body': '', 'method': u'PUT'}
...
botocore.exceptions.ClientError: An error occurred (NoSuchKey) when calling the CopyObject operation: The specified key does not exist.
```

Is there another way to do this?

diff --git a/botocore/handlers.py b/botocore/handlers.py
index c756f53e6..d1137fa26 100644
--- a/botocore/handlers.py
+++ b/botocore/handlers.py
@@ -42,7 +42,6 @@ REGISTER_FIRST = object()
 REGISTER_LAST = object()
 
 
-
 def check_for_200_error(response, **kwargs):
     # From: http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectCOPY.html
     # There are two opportunities for a copy request to return an error. One
@@ -66,8 +65,8 @@ def check_for_200_error(response, **kwargs):
     http_response, parsed = response
     if _looks_like_special_case_error(http_response):
         logger.debug("Error found for response with 200 status code, "
-                        "errors: %s, changing status code to "
-                        "500.", parsed)
+                     "errors: %s, changing status code to "
+                     "500.", parsed)
         http_response.status_code = 500
 
 
@@ -110,7 +109,7 @@ def json_decode_template_body(parsed, **kwargs):
 
 def calculate_md5(params, **kwargs):
     request_dict = params
-    if request_dict['body'] and not 'Content-MD5' in params['headers']:
+    if request_dict['body'] and 'Content-MD5' not in params['headers']:
         md5 = hashlib.md5()
         md5.update(six.b(params['body']))
         value = base64.b64encode(md5.digest()).decode('utf-8')
@@ -207,8 +206,13 @@ def add_expect_header(model, params, **kwargs):
 def quote_source_header(params, **kwargs):
     if params['headers'] and 'x-amz-copy-source' in params['headers']:
         value = params['headers']['x-amz-copy-source']
-        params['headers']['x-amz-copy-source'] = quote(
-            value.encode('utf-8'), '/~')
+        p = urlsplit(value)
+        # We only want to quote the path.  If the user specified
+        # extra parts, say '?versionId=myversionid' then that part
+        # should not be quoted.
+        quoted = quote(p[2].encode('utf-8'), '/~')
+        final_source = urlunsplit((p[0], p[1], quoted, p[3], p[4]))
+        params['headers']['x-amz-copy-source'] = final_source
 
 
 def copy_snapshot_encrypted(params, request_signer, **kwargs):
@@ -270,7 +274,8 @@ def _decode_policy_types(parsed, shape):
             if member_shape.type_name == 'string' and \\
                     member_shape.name == shape_name and \\
                     member_name in parsed:
-                parsed[member_name] = decode_quoted_jsondoc(parsed[member_name])
+                parsed[member_name] = decode_quoted_jsondoc(
+                    parsed[member_name])
             elif member_name in parsed:
                 _decode_policy_types(parsed[member_name], member_shape)
     if shape.type_name == 'list':
@@ -342,8 +347,8 @@ def inject_account_id(params, **kwargs):
 
 def add_glacier_version(model, params, **kwargs):
     request_dict = params
-    request_dict['headers']['x-amz-glacier-version'] = \\
-            model.metadata['apiVersion']
+    request_dict['headers']['x-amz-glacier-version'] = model.metadata[
+        'apiVersion']
 
 
 def add_glacier_checksums(params, **kwargs):
diff --git a/tests/unit/test_handlers.py b/tests/unit/test_handlers.py
index 6331e0817..c7e29fff8 100644
--- a/tests/unit/test_handlers.py
+++ b/tests/unit/test_handlers.py
@@ -61,6 +61,22 @@ class TestHandlers(BaseSessionTest):
             self.assertEqual(
                 params['headers']['x-amz-copy-source'], 'foo%2B%2Bbar.txt')
 
+    def test_only_quote_url_path_not_query_string(self):
+        request = {
+            'headers': {'x-amz-copy-source': '/foo/bar++baz?versionId=123'}
+        }
+        handlers.quote_source_header(request)
+        self.assertEqual(request['headers']['x-amz-copy-source'],
+                         '/foo/bar%2B%2Bbaz?versionId=123')
+
+    def test_quote_source_header_needs_no_changes(self):
+        request = {
+            'headers': {'x-amz-copy-source': '/foo/bar?versionId=123'}
+        }
+        handlers.quote_source_header(request)
+        self.assertEqual(request['headers']['x-amz-copy-source'],
+                         '/foo/bar?versionId=123')
+
     def test_presigned_url_already_present(self):
         params = {'body': {'PresignedUrl': 'https://foo'}}
         handlers.copy_snapshot_encrypted(params, None)
['botocore/handlers.py', 'tests/unit/test_handlers.py']