lib/usable/config_multi.rb in usable-3.3.0 vs lib/usable/config_multi.rb in usable-3.4.0

@@ -1,18 +1,20 @@
 module Usable
   module ConfigMulti
     # It's important to define all block specs we need to lazy load
-    # Set block specs to nil values so it will fallback to calling the underlying singleton method defined by Config#method_missing
     def +(other)
       config = clone
       specs = other.spec.to_h
       specs.each { |key, val| config[key] = val }
-      methods = other.spec.singleton_methods - specs.keys
+      methods = other.spec.singleton_methods
+      methods.map! { |name| name.to_s.tr('=', '').to_sym }
+      methods.uniq!
+      methods -= specs.keys
       methods.each do |name|
-        config.spec[name] = nil
         config.spec.define_singleton_method(name) do
           other.spec.public_method(name).call
         end
+        config.instance_variable_get(:@lazy_loads) << name
       end
       config
     end
   end
 end