Fixed IO::CwdChanger move assignment operator not returning a value
Fixed IO::CwdChanger move assignment operator not returning a value

opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core