QTIPlot crashes after using LOADRAW algorithm a second time

[NickDraper]

Steps to reproduce

I put the data on \olympic\babylon5\Scratch\Paolo G. Radaelli\Mantid_test, and they are for the SXD instrument.

Execute the LOADRAW algorithm with the file name you have there and the parameters:

Spectrum_min=8201
Spectrum_max=12296
Spectrum_list=12296

Import the workspace (all spectra) and plot as 3D Wire Frame (first button on the bottom left side of the window). It takes exactly 1 min on my computer to generate the 3D plot, but then in can be manipulated very fast. The spikes you see are Bragg peaks from a single crystal of YBaCo4O7. If you zoom in you can see their shape in the TOF dimension.

BTW, if I try to run LOADRAW again the program falls over even when I cleared the memory completely.

[NickDraper]

This issue was originally trac ticket 159