[gnome-calendar] window: comment misleading destruction of calendar row

[Erick Pérez Castellanos <erickpc src gnome org>]

commit c1b14e48d4c0ab2e40b17d7b158352d4693d78d6
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon May 18 17:42:43 2015 -0300

    window: comment misleading destruction of calendar row

 src/gcal-window.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-window.c b/src/gcal-window.c
index abf60fa..4db92e5 100644
--- a/src/gcal-window.c
+++ b/src/gcal-window.c
@@ -952,6 +952,12 @@ source_enabled (GcalManager *manager,
     {
       ESource *child_source = g_object_get_data (G_OBJECT (aux->data), "source");
 
+      /*
+       * Here we destroy the row and re-add it because there is no
+       * way to actually bind the ::enabled state of source. It behaves
+       * like a construct-only property, and we need to re-create the
+       * row if there's any changes.
+       */
       if (child_source != NULL && child_source == source)
         {
           gtk_widget_destroy (aux->data);