package xscreensaver-data 5.26-1ubuntu1 failed to install/upgrade: trying to overwrite '/usr/lib/xscreensaver/xlyap', which is also in package xscreensaver-data-extra 5.15-3ubuntu1

[gebc]

upon bootup

ProblemType: Package
DistroRelease: Ubuntu 14.10
Package: xscreensaver-data 5.26-1ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.2-0ubuntu4
Architecture: amd64
Date: Wed May 14 16:46:48 2014
DuplicateSignature: package:xscreensaver-data:5.26-1ubuntu1:trying to overwrite '/usr/lib/xscreensaver/xlyap', which is also in package xscreensaver-data-extra 5.15-3ubuntu1
ErrorMessage: trying to overwrite '/usr/lib/xscreensaver/xlyap', which is also in package xscreensaver-data-extra 5.15-3ubuntu1
InstallationDate: Installed on 2014-05-03 (14 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140502)
SourcePackage: xscreensaver
Title: package xscreensaver-data 5.26-1ubuntu1 failed to install/upgrade: trying to overwrite '/usr/lib/xscreensaver/xlyap', which is also in package xscreensaver-data-extra 5.15-3ubuntu1
UpgradeStatus: No upgrade log present (probably fresh install)