Merge pull request #132 from AayushSabharwal/as/fix-defaults

fix: merge defaults with original defaults

Author: ChrisRackauckas

src/components.jl

@@ -236,8 +236,8 @@ function process_components(doc::Document; simplify = true)
         # Defaults need to be set after simplifying as otherwise parameters and
         # states for which no defaults are available may still be present in
         # the system
-        @set! sys.defaults = Dict(find_list_value(
-            doc, vcat(parameters(sys), unknowns(sys))))
+        @set! sys.defaults = merge(ModelingToolkit.defaults(sys),
+            Dict{Any, Any}(find_list_value(doc, vcat(parameters(sys), unknowns(sys)))))
     end
 
     return sys