Update LegacyProtocol.php (#234)

imap_reopen as imap_open requires folder argument to start with the bracket, ie address

Author: latypoff

src/Connection/Protocols/LegacyProtocol.php

@@ -189,7 +189,7 @@ public function selectFolder(string $folder = 'INBOX') {
             throw new RuntimeException("failed to reopen stream.");
         }
 
-        \imap_reopen($this->stream, $folder, $flags, 3);
+        \imap_reopen($this->stream, $this->getAddress().$folder, $flags, 3);
         $this->uid_cache = null;
         return $this->examineFolder($folder);
     }