[vtk-developers] Fix(?) of update locking in vtkSource.cxx

[Charl P. Botha]

Has anyone had more time to look at my small patch to vtkSource.cxx? 
This patch moves the unsetting of the this->Updating ivar to the end of
UpdateData()... it used take place earlier in the UpdateData() method,
but to my mind this was not correct, as it did not completely prevent
re-entrancy of UpdateData().

Thanks,
Charl

-- 
charl p. botha http://cpbotha.net/ http://visualisation.tudelft.nl/
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