Fix issue when login in with a different user and trying to push

commands.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"github.com/dotcloud/docker/auth"
 	"github.com/dotcloud/docker/rcli"
+	"github.com/shin-/cookiejar"
 	"io"
 	"log"
 	"net/http"
@@ -154,6 +155,7 @@ func (srv *Server) CmdLogin(stdin io.ReadCloser, stdout rcli.DockerConn, args ..
 	if err != nil {
 		fmt.Fprintf(stdout, "Error: %s\r\n", err)
 	} else {
+		srv.runtime.graph.getHttpClient().Jar = cookiejar.NewCookieJar()
 		srv.runtime.authConfig = newAuthConfig
 	}
 	if status != "" {

registry.go

@@ -69,7 +69,7 @@ func (graph *Graph) getRemoteHistory(imgId, registry string, token []string) ([]
 
 func (graph *Graph) getHttpClient() *http.Client {
 	if graph.httpClient == nil {
-		graph.httpClient = new(http.Client)
+		graph.httpClient = &http.Client{}
 		graph.httpClient.Jar = cookiejar.NewCookieJar()
 	}
 	return graph.httpClient