Fix the check for "flags aren't actually changing".

	* providers/imap/camel-imap-folder.c (imap_set_message_flags): Fix
	the check for "flags aren't actually changing".

	* providers/local/camel-local-folder.c (local_set_message_flags,
	local_set_message_user_flag, local_set_message_user_tag): Don't
	emit message_changed unless the flags actually changed.

	* providers/nntp/camel-nntp-folder.c
	(nntp_folder_set_message_flags): Don't emit message_changed unless
	the flags actually changed. Fix the check for marked as seen.

svn path=/trunk/; revision=6797

1 files changed, 6 insertions, 2 deletions

diff --git a/camel/providers/nntp/camel-nntp-folder.c b/camel/providers/nntp/camel-nntp-folder.c
index ba469583e3..f918317502 100644
--- a/camel/providers/nntp/camel-nntp-folder.c
+++ b/camel/providers/nntp/camel-nntp-folder.c
@@ -97,10 +97,14 @@ nntp_folder_set_message_flags (CamelFolder *folder, const char *uid,
 {
 	CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER (folder);
 	CamelMessageInfo *info = camel_folder_summary_uid (nntp_folder->summary, uid);
+	guint32 new;
 
-	info->flags = set;
+	new = (info->flags & ~flags) | (set & flags);
+	if (new == info->flags)
+		return;
 
-	if (set & CAMEL_MESSAGE_SEEN) {
+	info->flags = new;
+	if (flags & set & CAMEL_MESSAGE_SEEN) {
 		int article_num;
 		CamelNNTPStore *nntp_store = CAMEL_NNTP_STORE (camel_folder_get_parent_store (folder));