Dereference QPointer so that GCC 4.8 can compile
GCC 4.8 is not able to deduce the raw pointer from QPointer, so this makes it explicit. Because VTK 8 and 9 will continue to support gcc 4.8, this branch will keep CMB in lockstep with that.
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GCC 4.8 is not able to deduce the raw pointer from QPointer, so this makes it explicit. Because VTK 8 and 9 will continue to support gcc 4.8, this branch will keep CMB in lockstep with that.