edit disk label appends extra characters

[Norbert]

There is something wrong in disk-labeling in palimpsest.

I want to set ADATA_USB3.0 but got ADATA_USB3~.
I want to set ADATA_USB3 but got ADATA_USB3A.
I want to set ADATA_USB but got ADATA_USBnA.

This bug may be similar to #885042 (about underscores).

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gnome-disk-utility 3.0.2-2ubuntu7
ProcVersionSignature: Ubuntu 3.2.0-36.57-generic 3.2.35
Uname: Linux 3.2.0-36-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
CheckboxSubmission: a3c9de473bf7a483a92609c6b20d2aee
CheckboxSystem: b633b4f40868d491c2ae5b50030ce6f3
Date: Tue Jan 29 11:45:13 2013
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-disk-utility
UpgradeStatus: Upgraded to precise on 2012-09-28 (122 days ago)

[Robert Roth (evfool)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug #1028531, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.