[evolution-data-server] [IMAPx] Empty trash doesn't empty virtual folder Trash

[Milan Crha <mcrha src gnome org>]

commit ad3a52dd2fac2f305dbf8191de97cd8349b3e3a2
Author: Milan Crha <mcrha redhat com>
Date:   Fri Sep 11 12:12:22 2015 +0200

    [IMAPx] Empty trash doesn't empty virtual folder Trash
    
    The 'expunge' parameter of the CamelFolder::synchronize_sync() had been
    completely ignored, while the 'Empty trash' function used it to permanently
    delete messages in the folder, thus it didn't delete anything.

 camel/providers/imapx/camel-imapx-folder.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/camel/providers/imapx/camel-imapx-folder.c b/camel/providers/imapx/camel-imapx-folder.c
index 532f321..e53b050 100644
--- a/camel/providers/imapx/camel-imapx-folder.c
+++ b/camel/providers/imapx/camel-imapx-folder.c
@@ -779,6 +779,9 @@ imapx_synchronize_sync (CamelFolder *folder,
                success = mailbox != NULL;
        } else {
                success = camel_imapx_conn_manager_sync_changes_sync (conn_man, mailbox, cancellable, error);
+               if (success && expunge && camel_folder_summary_get_deleted_count (folder->summary) > 0) {
+                       success = camel_imapx_conn_manager_expunge_sync (conn_man, mailbox, cancellable, 
error);
+               }
        }
 
        g_clear_object (&mailbox);