Fixed loading of graphs in the GraphEditor.

src/AnimGraph/AnimGraphResource.cc

@@ -68,6 +68,8 @@ Socket sJsonToSocket(const json& json_data) {
   if (type_string == "Bool") {
     result.m_type = SocketType::SocketTypeBool;
     result.m_type_size = sizeof(bool);
+    result.m_reference.ptr = &result.m_value.int_value;
+
     if (have_value) {
       result.m_value.flag = json_data["value"];
     }