non-summary question edit bug fix

app/models/answer.rb

@@ -7,4 +7,12 @@ class Answer < ApplicationRecord
   validates :candidate_id, presence: true
   validates :question_id, presence: true
   validates :answer, answer_format: true
+
+  # Throw away attributes
+  #   convenience for form manipulation
+  def answer_array=(val); end
+
+  def answer_hash=(val); end
+
+  def answer_id=(val); end
 end