Merge branch 'fix_expand_funcs' of github.com:SciML/Catalyst.jl into fix_expand_funcs

Author: TorkelE

src/registered_functions.jl

@@ -197,5 +197,6 @@ function expand_registered_functions(rs::ReactionSystem)
     if !isempty(ModelingToolkit.get_discrete_events(rs))
         @set! rs.discrete_events = Catalyst.expand_registered_functions(ModelingToolkit.get_discrete_events(rs))
     end
+    reset_networkproperties!(rs)
     return rs
 end