Remmina wont close using SSH tunnel when VNC server not running

If you use Remmina to attempt a VNC connection using the SSH tunnelling feature causes client to behave inconsistently or become unresponsive if the VNC server is not running (but SSH is).

Sometimes clicking Cancel does nothing and the program must be killed.
Sometimes clicking Cancel works but attempts to close the main Remmina window does nothing and program must be killed.
Sometimes the applet icon stops appearing even after Remmina is re-started.

Seems to be worse the longer you leave the system attempting to connect. If you cancel quickly (within about ten seconds) there are no problems.

If run from the console nothing appears in their after the "plugin ... registered" messages.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: remmina 1.0.0-4ubuntu3
ProcVersionSignature: Ubuntu 3.13.0-48.80-generic 3.13.11-ckt16
Uname: Linux 3.13.0-48-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.8
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Mar 31 17:45:18 2015
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/remmina
InstallationDate: Installed on 2013-05-07 (692 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: remmina
UpgradeStatus: Upgraded to trusty on 2014-04-28 (337 days ago)