[ 14.04-devel ] Nautilus doing weird things when mounting USB storage

lsb_release -rd:
Description: Ubuntu 14.04 LTS
Release: 14.04

apt-cache policy nautilus
nautilus:
  Installed: 1:3.10.1-0ubuntu8
  Candidate: 1:3.10.1-0ubuntu8
  Version table:
 *** 1:3.10.1-0ubuntu8 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status

This just started happening today (at least I noted this issue today):
When I insert a pendrive Nautilus mounts it *twice*; if that wasn't that weird it does it with wicked names:

~> sudo umount /media/msx/Kubuntu\\04014.04\\040LTS\\040amd64
[sudo] password for msx:
umount: /media/msx/Kubuntu\04014.04\040LTS\040amd64: not found
~> cd /media/msx/
~> ls
Kubuntu 14.04 LTS amd64/ Kubuntu 14.04 LTS amd641/
~>

//

As asked on Ubuntu QA list, here are the versions of my installed libusb packages:

~> apt-cache policy libusb-0.1-4:amd64
libusb-0.1-4:
  Installed: 2:0.1.12-23.3ubuntu1
  Candidate: 2:0.1.12-23.3ubuntu1
  Version table:
 *** 2:0.1.12-23.3ubuntu1 0

        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status

~> apt-cache policy libusb-1.0-0:amd64
libusb-1.0-0:
  Installed: 2:1.0.17-1ubuntu2
  Candidate: 2:1.0.17-1ubuntu2
  Version table:
 *** 2:1.0.17-1ubuntu2 0

        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status

~> apt-cache policy libusb-1.0-0:i386
libusb-1.0-0:i386:
  Installed: 2:1.0.17-1ubuntu2
  Candidate: 2:1.0.17-1ubuntu2
  Version table:
 *** 2:1.0.17-1ubuntu2 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main i386 Packages
        100 /var/lib/dpkg/status

~> apt-cache policy libusbredirparser1:amd64
libusbredirparser1:
  Installed: 0.6-2ubuntu1
  Candidate: 0.6-2ubuntu1
  Version table:
 *** 0.6-2ubuntu1 0

Please let me know if you need anything else.