Define a property Variable so that no other Reaction can modify a constant Variable.
Fixes issue where it was possible for another Reaction to also define a propery Variable and then modify a variable set by ReactionReservoirConst after the initial setup.
Define a property Variable so that no other Reaction can modify a constant Variable.
Fixes issue where it was possible for another Reaction to also define a propery Variable and then modify a variable set by ReactionReservoirConst after the initial setup.