BugFix: Deleting Peaks Workspaces in the Splatterplot View in the VSI

[AntonPiccardoSelg]

When deleting and readding a Peaks Workspace to the Splatterplot view in the VSI, Mantid crashes.

To reproduce:

1. Load an MDEvent workspace into the VSI and switch to the Splatterplot view
2. Load a Peaks Workpace into the VSI
3. Delete the Peaks Workpace in the pipeline browser
4. Add the Peaks Workspace again

Mantid should crash at this point.

The SplatterPlot keeps track of Peaks sources, when they are added, but does not keep track of their deletion when they are being deleted from the pipeline browser.

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Keywords: VATES

[AntonPiccardoSelg]

This issue was originally trac ticket 11045

[AntonPiccardoSelg]

http://trac.mantidproject.org/mantid/raw-attachment/ticket/11045/MDEventWS.nxs
(uploaded by @picatess on 2015-03-05T11:38:26)

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http://trac.mantidproject.org/mantid/raw-attachment/ticket/11045/PeaksWS.nxs
(uploaded by @picatess on 2015-03-05T11:38:31)

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