"Cancel" button doesn't cancel

Binary package hint: vym

Steps to reproduce:
1) Open vym, do something
2) Click on "X" to close (don't use the Quit function in the menu)
3) In the confirmation dialog, click "Cancel" (not "save" or "discard")

Result:
Vym closes and your work is lost

Expected behaviour:
Vym should stay open

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: vym 1.12.2-2
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
Architecture: amd64
Date: Sun May 2 20:19:37 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate amd64 (20100419.1)
ProcEnviron:
 LANG=de_AT.utf8
 SHELL=/bin/bash
SourcePackage: vym