Hides the location again correctly

app/models/form.rb

@@ -127,9 +127,9 @@ class Form
   end
 
   def invalidated_page_questions(case_log, current_user = nil)
-    # we're already treating address fields as a special case and reset their values upon saving a case_log
+    # we're already treating these fields as a special case and reset their values upon saving a case_log
-    address_questions = %w[postcode_known la ppcodenk previous_la_known prevloc postcode_full ppostcode_full]
+    callback_questions = %w[postcode_known la ppcodenk previous_la_known prevloc postcode_full ppostcode_full location_id]
-    questions.reject { |q| q.page.routed_to?(case_log, current_user) || q.derived? || address_questions.include?(q.id) } || []
+    questions.reject { |q| q.page.routed_to?(case_log, current_user) || q.derived? || callback_questions.include?(q.id) } || []
   end
 
   def enabled_page_questions(case_log)

app/models/form/setup/questions/location_id.rb

@@ -5,7 +5,6 @@ class Form::Setup::Questions::LocationId < ::Form::Question
     @header = "Which location is this log for?"
     @hint_text = ""
     @type = "radio"
-    @derived = true
     @answer_options = answer_options
   end
 

spec/models/form/setup/questions/location_id_spec.rb

@@ -28,7 +28,7 @@ RSpec.describe Form::Setup::Questions::LocationId, type: :model do
   end
 
   it "is marked as derived" do
-    expect(question).to be_derived
+    expect(question).not_to be_derived
   end
 
   context "when there are no locations" do