ModelAttribute.methods_by_class: Take symbol parameter instead of string

Didn't like how `#initialize` takes a different type for `klass` than
`.methods_by_class`. Make these types and values uniform. If we need to
change it, we should make a separate mechanism to do so. I think.

Refs #4401

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/model_attribute.rb b/lib/model_attribute.rb
index 8f1ecabed..84706ba4d 100644
--- a/lib/model_attribute.rb
+++ b/lib/model_attribute.rb
@@ -11,7 +11,7 @@ class ModelAttribute
 
   def self.methods_by_class(klass)
     all.select do |model_attr|
-      model_attr.klass == klass.downcase.to_sym
+      model_attr.klass == klass
     end
   end