[evolution] Bug #564820 - Search filter persists when changing folders

[Milan Crha <mcrha src gnome org>]

commit e4cce2eeae7889b82ff9a1da5d4062a83f2cbdf7
Author: Milan Crha <mcrha redhat com>
Date:   Mon Apr 23 12:49:46 2012 +0200

    Bug #564820 - Search filter persists when changing folders

 mail/message-list.c                      |    6 ++++++
 modules/mail/e-mail-shell-view-private.c |    7 ++++++-
 2 files changed, 12 insertions(+), 1 deletions(-)
---
diff --git a/mail/message-list.c b/mail/message-list.c
index 14ef44f..154080e 100644
--- a/mail/message-list.c
+++ b/mail/message-list.c
@@ -3850,6 +3850,12 @@ message_list_set_folder (MessageList *message_list,
 	if (message_list->folder == folder)
 		return;
 
+	g_free (message_list->search);
+	message_list->search = NULL;
+
+	g_free (message_list->frozen_search);
+	message_list->frozen_search = NULL;
+
 	if (message_list->seen_id) {
 		g_source_remove (message_list->seen_id);
 		message_list->seen_id = 0;
diff --git a/modules/mail/e-mail-shell-view-private.c b/modules/mail/e-mail-shell-view-private.c
index 9a58f9d..e043d7d 100644
--- a/modules/mail/e-mail-shell-view-private.c
+++ b/modules/mail/e-mail-shell-view-private.c
@@ -852,8 +852,13 @@ e_mail_shell_view_restore_state (EMailShellView *mail_shell_view)
 	reader = E_MAIL_READER (mail_view);
 	folder = e_mail_reader_get_folder (reader);
 
-	if (folder == NULL)
+	if (folder == NULL) {
+		if (e_shell_searchbar_get_state_group (searchbar)) {
+			e_shell_searchbar_set_state_group (searchbar, NULL);
+			e_shell_searchbar_load_state (searchbar);
+		}
 		return;
+	}
 
 	/* Do not restore state if we're running a "Current Account"
 	 * or "All Accounts" search, since we don't want the search