[Kst] [Bug 110733] New: Histograms don't delete on first purge

[Matthew Truch]

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http://bugs.kde.org/show_bug.cgi?id=110733         
           Summary: Histograms don't delete on first purge
           Product: kst
           Version: unspecified
          Platform: unspecified
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kst kde org
        ReportedBy: matt truch net


Version:           1.2.0_devel (using KDE KDE 3.4.0)
OS:                Linux

You have to click on purge twice to get histograms to fully delete in the data manager.

Steps to reproduce:
1. Plot a histogram in kst.  You can plot other stuff too, if you want.
2. Delete the histogram from all windows.
3. Open the data manager.
4. Click on purge.  Note that the 'curve' of the histogram is deleted, but the histogram is not.
5. Click on purge again.  Now everything that should be purged is.  

Expected behavior:
All of the unused histogram data manager items are deleted with one click of purge.  

Note: This may have to do with the fact that the histogram always seems to have a "used" checkmark.