Changing password does not change ecryptfs password

I changed my own password on the Gnome User Accounts applet. After reboot, I could not access my home directory. It turns out the ecryptfs passphrase was still wrapped with the *old* password.

Workaround: in single user mode, I used ecryptfs command to rewrap the passphrase.

This is similar to the old #307019, but now on Ubuntu 14.04 + Gnome (brand new, not an upgraded system).

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gnome-control-center 1:3.6.3-0ubuntu56.1
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
Uname: Linux 3.13.0-27-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: GNOME
Date: Tue May 27 12:21:39 2014
InstallationDate: Installed on 2014-04-29 (27 days ago)
InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_gnome-control-center: deja-dup 30.0-0ubuntu4