Fix: Refreshing the page during a second step builder attempt will display previous answers

problem_builder/mentoring.py

@@ -958,6 +958,8 @@ class MentoringWithExplicitStepsBlock(BaseMentoringBlock, StudioContainerWithNes
         fragment = Fragment()
         children_contents = []
 
+        context = context or {}
+        context['hide_prev_answer'] = True  # For Step Builder, we don't show the users' old answers when they try again
         for child_id in self.children:
             child = self.runtime.get_block(child_id)
             if child is None:  # child should not be None but it can happen due to bugs or permission issues

problem_builder/templates/html/mcqblock.html

@@ -10,7 +10,7 @@
       <div class="choice-selector">
         <input id="choice-{{ self.html_id }}-{{ forloop.counter }}" type="radio"
           name="{{ self.name }}" value="{{ choice.value }}"
-          {% if self.student_choice == choice.value %} checked{% endif %}
+          {% if self.student_choice == choice.value and not hide_prev_answer %} checked{% endif %}
         />
       </div>
       <label class="choice-label" for="choice-{{ self.html_id }}-{{ forloop.counter }}">

problem_builder/templates/html/mrqblock.html

@@ -10,7 +10,7 @@
       <div class="choice-selector">
         <input id="choice-{{ self.html_id }}-{{ forloop.counter }}" type="checkbox"
          name="{{ self.name }}" value="{{ choice.value }}"
-         {% if choice.value in self.student_choices %} checked{% endif %}
+         {% if choice.value in self.student_choices and not hide_prev_answer %} checked{% endif %}
         />
       </div>
       <label class="choice-label" for="choice-{{ self.html_id }}-{{ forloop.counter }}">

problem_builder/templates/html/ratingblock.html

@@ -10,7 +10,7 @@
         <div class="choice-selector">
           <input id="choice-{{ self.html_id }}-{{i}}" type="radio"
             name="{{ self.name }}" value="{{i}}"
-            {% if self.student_choice == i %} checked{%else%} data-student-choice='{{self.student_choice}}'{% endif %}
+            {% if self.student_choice == i and not hide_prev_answer %} checked{%else%} data-student-choice='{{self.student_choice}}'{% endif %}
             />
         </div>
         <label class="choice-label" for="choice-{{ self.html_id }}-{{i}}">
@@ -30,7 +30,7 @@
       <div class="choice-selector">
         <input id="choice-{{ self.html_id }}-custom{{ forloop.counter }}" type="radio"
           name="{{ self.name }}" value="{{ choice.value }}"
-          {% if self.student_choice == choice.value %} checked{%else%} data-student-choice='{{self.student_choice}}'{% endif %}
+          {% if self.student_choice == choice.value and not hide_prev_answer %} checked{%else%} data-student-choice='{{self.student_choice}}'{% endif %}
         />
       </div>
       <label class="choice-label" for="choice-{{ self.html_id }}-custom{{ forloop.counter }}">

problem_builder/tests/integration/test_step_builder.py

@@ -425,6 +425,9 @@ class StepBuilderTest(MentoringAssessmentBaseTest, MultipleSliderBlocksTestMixin
             None, step_builder, controls, 'This is a different answer', CORRECT, saved_value='This is the answer'
         )
         # Step 2
+        # Reload the page, which should have no effect
+        self.browser.execute_script("$(document).html(' ');")
+        step_builder, controls = self.go_to_assessment()
         # Submit MCQ, go to next step
         self.single_choice_question(None, step_builder, controls, 'Yes', CORRECT)
         # Step 3