downloaded size more than total size

[Hussain Parsaiyan]

While updating the packages I saw the downloaded size exceed the total download size. I had previously run the updater but had cancelled it because the download was taking time. Today when I started it again it began from the Linux kernel image and I saw the above stated. When the download had finished this total size had dropped back to the total size (13.9MB). Meaning it was during the download that this seemingly false info was shown. Snapshot attached.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: update-manager 1:0.194
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
Date: Fri Dec 27 22:35:06 2013
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'launch-time' b'1388164353'
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-width' b'962'
InstallationDate: Installed on 2013-12-25 (1 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
InterpreterPath: /usr/bin/python3.3
MarkForUpload: True
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: No upgrade log present (probably fresh install)