[Bug 1286422] [NEW] muon-updater prompts to click missing "Check for updates" button

[skierpage]

Public bug reported:

When I open muon-updater, its Software Updates window is mostly blank
and shows the message:

   It is unknown when the last check for updates was.
  Please click Check for Updates to check.

But  there is no Check for Updates anywhere, not even in the [More...v]
menu. I'll attach a screenshot.

This eventually is replaced by the available software to update and the
[ Install Updates] button enables (or, it is replaced by "The software
on this computer is up to date. Last checked XX hours ago").  But while
it's on-screen it makes no sense.

I don't know whether the "It is unknown when" message itself is a bug,
it appears even though muon-updater ran successfully last time.

This is on Kubuntu 13.10, Muon Update Manager 2.1.3 on KDE 4.11.5

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: muon-updater 2.1.3-0ubuntu0.2
ProcVersionSignature: Ubuntu 3.11.0-18.32-generic 3.11.10.4
Uname: Linux 3.11.0-18-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
Date: Fri Feb 28 18:39:01 2014
MarkForUpload: True
SourcePackage: muon
UpgradeStatus: Upgraded to saucy on 2013-10-21 (130 days ago)

** Affects: muon (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug saucy

** Attachment added: "muon-updater with prompt to click missing button"
   https://bugs.launchpad.net/bugs/1286422/+attachment/4001698/+files/muon-updater_no_button.png

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https://bugs.launchpad.net/bugs/1286422

Title:
  muon-updater prompts to click missing "Check for updates" button

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