[evolution-data-server] Bug #659736 - Do not report change on property set when not changed

[Milan Crha <mcrha src gnome org>]

commit 208ae96fc848d15f93415dea2d5ba16e52e2767a
Author: Milan Crha <mcrha redhat com>
Date:   Thu Nov 10 17:31:23 2011 +0100

    Bug #659736 - Do not report change on property set when not changed

 libedataserver/e-source-group.c |    6 ++++++
 libedataserver/e-source.c       |    7 +++++++
 2 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/libedataserver/e-source-group.c b/libedataserver/e-source-group.c
index 277a724..d4a5835 100644
--- a/libedataserver/e-source-group.c
+++ b/libedataserver/e-source-group.c
@@ -975,10 +975,16 @@ e_source_group_set_property (ESourceGroup *source_group,
                              const gchar *value)
 {
 	ESourceGroupPrivate *priv;
+	const gchar *old_value;
 
 	g_return_if_fail (E_IS_SOURCE_GROUP (source_group));
 	priv = source_group->priv;
 
+	old_value = g_hash_table_lookup (priv->properties, property);
+
+	if (g_strcmp0 (old_value, value) == 0)
+		return;
+
 	if (value)
 		g_hash_table_replace (priv->properties, g_strdup (property), g_strdup (value));
 	else
diff --git a/libedataserver/e-source.c b/libedataserver/e-source.c
index 4754615..2552849 100644
--- a/libedataserver/e-source.c
+++ b/libedataserver/e-source.c
@@ -1151,9 +1151,16 @@ e_source_set_property (ESource *source,
                        const gchar *property_name,
                        const gchar *property_value)
 {
+	const gchar *old_value;
+
 	g_return_if_fail (E_IS_SOURCE (source));
 	g_return_if_fail (property_name != NULL);
 
+	old_value = g_hash_table_lookup (source->priv->properties, property_name);
+
+	if (g_strcmp0 (old_value, property_value) == 0)
+		return;
+
 	if (property_value != NULL)
 		g_hash_table_replace (
 			source->priv->properties,