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.
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.