SH basis switch error

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What steps will reproduce the problem?
1. Load sh coefficients from a SH estimation in mrtrix 
2. click on the MRtrix button to switch basis
3. nothing happens and you have the following error in the shell:
** ERROR (nifti_image_read): failed to find header file for ''
** ERROR (nifti_image_read): failed to find header file for ''
[07:30:43] ERROR: nifti file corrupt, cannot create nifti image from header

What version of the product are you using? On what operating system?
revision 1605
(tested and it works fine with version before factoring)

Original issue reported on code.google.com by Maxime.D...@gmail.com on 7 May 2012 at 11:34

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Original comment by Girard.G...@gmail.com on 7 May 2012 at 2:41

• Added labels: Priority-High, Trunk_after_refactoring
• Removed labels: Priority-Medium

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Original comment by Jean.Chr...@gmail.com on 8 May 2012 at 6:24

• Changed state: Fixed