Move Constructor of `ProcessVariable` is probably errorneous
Description
Code quality checker reported:
Info - Member variable 'ProcessVariable::_ids_of_active_elements' is not assigned in the move constructor. Should it be moved?
in ProcessLib/ProcessVariable.cpp:197
https://gitlab.opengeosys.org/ogs/ogs/-/blob/master/ProcessLib/ProcessVariable.h#L133
https://gitlab.opengeosys.org/ogs/ogs/-/blob/master/ProcessLib/ProcessVariable.cpp#L197-209
I suppose this is a problem, but I'm not sure.