[osg-submissions] Fix to osg::Uniform's copy constructor

[Jean-Sébastien Guay]

Hello Robert,

When copying a node that had uniforms on it, the copy constructor of 
osg::Uniform would not copy the array of the original uniform (either 
_intArray or _floatArray) because none had been allocated and the copy 
constructor checks that *both* this's array and rhs's array are valid.

I added a call to allocateDataArray() if rhs has (at least) one valid 
array, which should allocate the right array according to the type. 
Since the type was copied from rhs, it should create the same array as 
rhs has, so then it should copy the data in the following lines.

(long description for a small change, but I wanted to be explicit)

J-S
-- 
______________________________________________________
Jean-Sebastien Guay    jean-sebastien.guay at cm-labs.com
                                http://www.cm-labs.com/
                         http://whitestar02.webhop.org/
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