[gnome-calendar] edit-dialog: don't destroy the dialog on delete

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit ab902030e7d111f1d82021921c022d11eb2656b3
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Feb 29 17:42:13 2016 -0300

    edit-dialog: don't destroy the dialog on delete

 data/ui/window.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/window.ui b/data/ui/window.ui
index 757f2d6..16c80c2 100644
--- a/data/ui/window.ui
+++ b/data/ui/window.ui
@@ -347,5 +347,6 @@
     <property name="visible">False</property>
     <property name="transient_for">GcalWindow</property>
     <signal name="response" handler="edit_dialog_closed" object="GcalWindow" swapped="no"/>
+    <signal name="delete-event" handler="gtk_widget_hide_on_delete" object="GcalWindow" swapped="no"/>
   </object>
 </interface>