From a48565e171ccb60aa6a6bac880b0096f1dd1349e Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Sun, 25 Jun 2017 20:13:43 +0100
Subject: [PATCH] data_forms: Fix FORM_TYPE, <title/> and <instructions/>
 serialisation.

---
 src/data_forms.rs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/data_forms.rs b/src/data_forms.rs
index b5cd004b..7e187ec1 100644
--- a/src/data_forms.rs
+++ b/src/data_forms.rs
@@ -229,9 +229,8 @@ impl From<DataForm> for Element {
         Element::builder("x")
                 .ns(ns::DATA_FORMS)
                 .attr("type", form.type_)
-                .append(form.form_type)
-                .append(form.title)
-                .append(form.instructions)
+                .append(if form.title.is_some() { Some(Element::builder("title").ns(ns::DATA_FORMS).append(form.title)) } else { None })
+                .append(if form.instructions.is_some() { Some(Element::builder("instructions").ns(ns::DATA_FORMS).append(form.instructions)) } else { None })
                 .append(form.fields)
                 .build()
     }