Disabled auto enroll in ccx enrollment tab

lms/djangoapps/ccx/views.py

@@ -420,7 +420,7 @@ def ccx_invite(request, course, ccx=None):
     action = request.POST.get('enrollment-button')
     identifiers_raw = request.POST.get('student-ids')
     identifiers = _split_input_list(identifiers_raw)
-    auto_enroll = True if 'auto-enroll' in request.POST else False
+    auto_enroll = True
     email_students = True if 'email-students' in request.POST else False
     for identifier in identifiers:
         user = None

lms/templates/ccx/enrollment.html

@@ -13,7 +13,7 @@
 
 
   <div class="enroll-option">
-    <input type="checkbox" name="auto-enroll" id="auto-enroll" value="Auto-Enroll" checked="yes" aria-describedby="auto-enroll-helper">
+    <input type="checkbox" name="auto-enroll" id="auto-enroll" value="Auto-Enroll" checked="yes" aria-describedby="auto-enroll-helper" disabled>
     <label style="display:inline" for="auto-enroll">${_("Auto Enroll")}</label>
     <div class="hint auto-enroll-hint">
       <span class="hint-caret"></span>