Make sure filter dest is Maildir when underlying folder is

diff --git a/filter/save.cgi b/filter/save.cgi
index 4408b16..4f6cc00 100755 (executable)
--- a/filter/save.cgi
+++ b/filter/save.cgi
@@ -112,7 +112,8 @@ else {
                        }
                $file =~ s/^\Q$remote_user_info[7]\/\E/\$HOME\//;
                $filter->{'action'} = $file;
-               if ($folder->{'type'} == 1) {
+               if ($folder->{'type'} == 1 ||
+                   $folder->{'type'} == 4 && -d $folder->{'file'}) {
                        # Maildir has to end with /
                        $filter->{'action'} .= '/';
                        }