Don't call ews_utils_rename_folder() if the folder didn't move.
Don't call ews_utils_rename_folder() if the folder didn't move.

This happens when *we* renamed it, so we already moved stuff around in
our own store. If we go through the ews_utils_rename_folder() process it's
*mostly* harmless right up to the camel_ews_store_summary_remove_folder()
call right at the end...

GNOME/evolution-ews,GNOME/evolution-ews