fix schema1 fetchBlob()

Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>

client_test.go

@@ -291,6 +291,22 @@ func TestImagePullSomePlatforms(t *testing.T) {
 	}
 }
 
+func TestImagePullSchema1(t *testing.T) {
+	client, err := newClient(t, address)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer client.Close()
+
+	ctx, cancel := testContext()
+	defer cancel()
+	schema1TestImage := "gcr.io/google_containers/pause:3.0@sha256:0d093c962a6c2dd8bb8727b661e2b5f13e9df884af9945b4cc7088d9350cd3ee"
+	_, err = client.Pull(ctx, schema1TestImage, WithPlatform(platforms.Default()), WithSchema1Conversion)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
 func TestClientReconnect(t *testing.T) {
 	t.Parallel()