check-new-release-gtk crashed with TypeError in on_button_ask_me_later_clicked(): integer argument expected, got float

I selected the "Ask Me Later" button when the "Ubuntu 11.10 Upgrade Available" box popped up then I received the pop-up that the upgrade manager crashed.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: update-manager 1:0.150.3
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Oct 13 16:19:56 2011
ExecutablePath: /usr/lib/update-manager/check-new-release-gtk
GConfNonDefault:
 /apps/update-manager/check_new_release_ignore=
 /apps/update-manager/first_run=false
 /apps/update-manager/window_size=(600,600)
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.7 /usr/lib/update-manager/check-new-release-gtk
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/lib/update-manager/check-new-release-gtk']
SourcePackage: update-manager
Title: check-new-release-gtk crashed with TypeError in on_button_ask_me_later_clicked(): integer argument expected, got float
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/update-manager/check-new-release-gtk", line 126, in on_button_ask_me_later_clicked
     client.set_int("/apps/update-notifier/release_check_time", next_check)
 TypeError: integer argument expected, got float
UpgradeStatus: Upgraded to natty on 2011-04-29 (167 days ago)
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